[Analyzer] Use diff_plist in tests, NFC

[NoQ]

What do you think about the following approach:

1. Define a lit substitution %diff_plist that resolves to diff -u -w -I "<string>/" -I "<string>.:" -I "version" -.
2. Update these flags in your downstream fork.

It's kinda cool because it'll allow us to test exactly what we want in the exact output that we normally expect ourselves to produce. Step 1 is a good thing to do anyway because it reduces duplication.

[miyuki]

Use a different approach (suggested by Artem).

[Szelethus]

Cool! Looks a lot cleaner.

[george.karpenkov]

Thanks!
A substitution would probably need to be defined in a different file though.

test/Analysis/NewDelete-path-notes.cpp

 // RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete,unix.Malloc -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete,unix.Malloc -analyzer-output=text -analyzer-config c++-allocator-inlining=true -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete,unix.Malloc -analyzer-output=plist %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/NewDelete-path-notes.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/NewDelete-path-notes.cpp.plist
 
 void test() {
   int *p = new int;
   // expected-note@-1 {{Memory is allocated}}
   if (p)
     // expected-note@-1 {{Taking true branch}}
     delete p;
     // expected-note@-1 {{Memory is released}}

test/Analysis/conditional-path-notes.c

 // RUN: %clang_analyze_cc1 %s -analyzer-checker=core.NullDereference -analyzer-output=text -verify
 // RUN: %clang_analyze_cc1 %s -analyzer-checker=core.NullDereference -analyzer-output=plist -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/conditional-path-notes.c.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/conditional-path-notes.c.plist
 
 void testCondOp(int *p) {
   int *x = p ? p : p;
   // expected-note@-1 {{Assuming 'p' is null}}
   // expected-note@-2 {{'?' condition is false}}
   // expected-note@-3 {{'x' initialized to a null pointer value}}
   *x = 1; // expected-warning{{Dereference of null pointer (loaded from variable 'x')}}
   // expected-note@-1 {{Dereference of null pointer (loaded from variable 'x')}}

test/Analysis/copypaste/plist-diagnostics-notes-as-events.cpp

 // RUN: %clang_analyze_cc1 -analyzer-output=plist -analyzer-config notes-as-events=true -o %t.plist -std=c++11 -analyzer-checker=alpha.clone.CloneChecker -analyzer-config alpha.clone.CloneChecker:MinimumCloneComplexity=10 -verify %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-diagnostics-notes-as-events.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-diagnostics-notes-as-events.cpp.plist
 
 void log();
 
 int max(int a, int b) { // expected-warning{{Duplicate code detected}}
   log();
   if (a > b)
     return a;
   return b;

test/Analysis/copypaste/plist-diagnostics.cpp

 // RUN: %clang_analyze_cc1 -analyzer-output=plist -o %t.plist -std=c++11 -analyzer-checker=alpha.clone.CloneChecker -analyzer-config alpha.clone.CloneChecker:MinimumCloneComplexity=10 -verify %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-diagnostics.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-diagnostics.cpp.plist
 
 void log();
 
 int max(int a, int b) { // expected-warning{{Duplicate code detected}}
   log();
   if (a > b)
     return a;
   return b;

test/Analysis/cxx-for-range.cpp

 // RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core -analyzer-output=plist-multi-file -o %t.plist -verify -analyzer-config eagerly-assume=false %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/cxx-for-range.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/cxx-for-range.cpp.plist
 
 extern void work();
 
 void testLoop() {
   int z[] = {1,2};
   for (int y : z) {
     work();
     work();

test/Analysis/diagnostics/deref-track-symbolic-region.c

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file  %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/deref-track-symbolic-region.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/deref-track-symbolic-region.c.plist
 
 struct S {
   int *x;
   int y;
 };
 
 int *foo();
 

test/Analysis/diagnostics/report-issues-within-main-file.cpp

 // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -analyzer-output=plist-multi-file -analyzer-config report-in-main-source-file=true %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/report-issues-within-main-file.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/report-issues-within-main-file.cpp.plist
 #include "Inputs/include/report-issues-within-main-file.h"
 
 void mainPlusHeader() {
   auto_ptr<int> B (new int[5]);
 }
 
 void auxInMain() {
   int j = 0;

test/Analysis/diagnostics/undef-value-caller.c

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist -o %t %s
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/undef-value-caller.c.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/undef-value-caller.c.plist
 
 #include "undef-value-callee.h"
 
 // This code used to cause a crash since we were not adding fileID of the header to the plist diagnostic.
 
 int test_calling_unimportant_callee(int argc, char *argv[]) {
   int x;
   callee();
   return x; // expected-warning {{Undefined or garbage value returned to caller}}
 }
 

test/Analysis/diagnostics/undef-value-param.c

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file  %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/undef-value-param.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/undef-value-param.c.plist
 
 void foo_irrelevant(int c) {
     if (c)
         return;
     c++;
     return;
 }
 void foo(int c, int *x) {

test/Analysis/diagnostics/undef-value-param.m

 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -analyzer-output=plist-multi-file %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/undef-value-param.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/undef-value-param.m.plist
 
 typedef signed char BOOL;
 @protocol NSObject  - (BOOL)isEqual:(id)object; @end
 @interface NSObject <NSObject> {}
 +(id)alloc;
 +(id)new;
 -(id)init;
 -(id)autorelease;

test/Analysis/edges-new.mm

 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,deadcode.DeadStores,osx.cocoa.RetainCount,unix.Malloc,unix.MismatchedDeallocator -analyzer-output=plist -o %t -w %s
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/edges-new.mm.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/edges-new.mm.plist
 
 //===----------------------------------------------------------------------===//
 // Forward declarations (from headers).
 //===----------------------------------------------------------------------===//
 
 typedef const struct __CFNumber * CFNumberRef;
 typedef const struct __CFAllocator * CFAllocatorRef;
 extern const CFAllocatorRef kCFAllocatorDefault;

test/Analysis/generics.m

 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.ObjCGenerics,alpha.core.DynamicTypeChecker -verify -Wno-objc-method-access %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.ObjCGenerics,alpha.core.DynamicTypeChecker -verify -Wno-objc-method-access %s -analyzer-output=plist -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/generics.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/generics.m.plist
 
 #if !__has_feature(objc_generics)
 #  error Compiler does not support Objective-C generics?
 #endif
 
 #if !__has_feature(objc_generics_variance)
 #  error Compiler does not support co- and contr-variance?
 #endif

test/Analysis/inline-plist.c

 // RUN: %clang_analyze_cc1 %s -analyzer-checker=core.NullDereference,core.DivideZero -fblocks -analyzer-output=text -analyzer-config suppress-null-return-paths=false -verify -analyzer-config eagerly-assume=false %s
 // RUN: %clang_analyze_cc1 -analyzer-config eagerly-assume=false %s -analyzer-checker=core.NullDereference,core.DivideZero -fblocks -analyzer-output=plist -analyzer-config suppress-null-return-paths=false -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/inline-plist.c.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/inline-plist.c.plist
 
 // <rdar://problem/10967815>
 void mmm(int y) {
   if (y != 0)
     y++;
 }
 
 int foo(int x, int y) {

test/Analysis/inline-unique-reports.c

 // RUN: %clang_analyze_cc1 %s -analyzer-checker=core.NullDereference -analyzer-output=plist -o %t > /dev/null 2>&1
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/inline-unique-reports.c.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/inline-unique-reports.c.plist
 
 static inline bug(int *p) {
   *p = 0xDEADBEEF;
 }
 
 void test_bug_1() {
   int *p = 0;
   bug(p);
 }
 
 void test_bug_2() {
   int *p = 0;
   bug(p);
 }
 
 

test/Analysis/inlining/eager-reclamation-path-notes.c

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config graph-trim-interval=5 -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config graph-trim-interval=5 %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/eager-reclamation-path-notes.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/eager-reclamation-path-notes.c.plist
 
 void use(int *ptr, int val) {
   *ptr = val; // expected-warning {{Dereference of null pointer (loaded from variable 'ptr')}}
   // expected-note@-1 {{Dereference of null pointer (loaded from variable 'ptr')}}
 }
 
 int compute() {
   // Do something that will take enough processing to trigger trimming.

test/Analysis/inlining/eager-reclamation-path-notes.cpp

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/eager-reclamation-path-notes.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/eager-reclamation-path-notes.cpp.plist
 
 typedef struct {
   int getValue();
 } IntWrapper;
 
 IntWrapper *getNullWrapper() {
   return 0;
   // expected-note@-1 {{Returning null pointer}}

test/Analysis/inlining/path-notes.c

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config suppress-null-return-paths=false -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config suppress-null-return-paths=false %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/path-notes.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/path-notes.c.plist
 
 void zero(int **p) {
   *p = 0;
   // expected-note@-1 {{Null pointer value stored to 'a'}}
 }
 
 void testZero(int *a) {
   zero(&a);

test/Analysis/inlining/path-notes.cpp

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config c++-inlining=destructors -std=c++11 -verify -Wno-tautological-undefined-compare %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config c++-inlining=destructors -std=c++11 %s -o %t.plist -Wno-tautological-undefined-compare
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/path-notes.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/path-notes.cpp.plist
 
 class Foo {
 public:
   static void use(int *p) {
     *p = 1; // expected-warning {{Dereference of null pointer (loaded from variable 'p')}}
     // expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}}
   }
 

test/Analysis/inlining/path-notes.m

 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.NilArg,osx.cocoa.RetainCount -analyzer-output=text -analyzer-config suppress-null-return-paths=false -fblocks -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.NilArg,osx.cocoa.RetainCount -analyzer-output=plist-multi-file -analyzer-config suppress-null-return-paths=false -fblocks %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/path-notes.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/path-notes.m.plist
 
 typedef struct dispatch_queue_s *dispatch_queue_t;
 typedef void (^dispatch_block_t)(void);
 void dispatch_sync(dispatch_queue_t, dispatch_block_t);
 
 typedef long dispatch_once_t;
 // Note: The real dispatch_once has all parameters marked nonnull.
 // We don't do that here so that we can trigger a null dereference inside

test/Analysis/method-call-path-notes.cpp

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file  %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/method-call-path-notes.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/method-call-path-notes.cpp.plist
 
 // Test warning about null or uninitialized pointer values used as instance member
 // calls.
 class TestInstanceCall {
 public:
   void foo() {}
 };
 

test/Analysis/model-file.cpp

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-config faux-bodies=true,model-path=%S/Inputs/Models -analyzer-output=plist-multi-file -verify %s -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/model-file.cpp.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/model-file.cpp.plist
 
 typedef int* intptr;
 
 // This function is modeled and the p pointer is dereferenced in the model
 // function and there is no function definition available. The modeled
 // function can use any types that are available in the original translation
 // unit, for example intptr in this case.
 void modeledFunction(intptr p);

test/Analysis/null-deref-path-notes.m

 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-store=region -analyzer-output=text -fblocks -verify -Wno-objc-root-class %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-store=region -analyzer-output=plist-multi-file -fblocks -Wno-objc-root-class %s -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/null-deref-path-notes.m.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/null-deref-path-notes.m.plist
 
 @interface Root {
 @public
   int uniqueID;
 }
 - (id)initWithID:(int)newID;
 - (void)refreshID;
 @end

test/Analysis/nullability-notes.m

 // RUN: %clang_analyze_cc1 -fblocks -analyzer-checker=core,nullability.NullPassedToNonnull,nullability.NullReturnedFromNonnull,nullability.NullablePassedToNonnull,nullability.NullableReturnedFromNonnull,nullability.NullableDereferenced -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -fblocks -analyzer-checker=core,nullability.NullPassedToNonnull,nullability.NullReturnedFromNonnull,nullability.NullablePassedToNonnull,nullability.NullableReturnedFromNonnull,nullability.NullableDereferenced -analyzer-output=plist -o %t.plist %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/nullability-notes.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/nullability-notes.m.plist
 
 #include "Inputs/system-header-simulator-for-nullability.h"
 
 void takesNonnull(NSObject *_Nonnull y);
 
 @interface ClassWithProperties: NSObject
 @property(copy, nullable) NSObject *x; // plist check ensures no control flow piece from here to 'self.x'.
 -(void) method;

test/Analysis/objc-arc.m

 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.cocoa.RetainCount,deadcode -verify -fblocks -analyzer-opt-analyze-nested-blocks -fobjc-arc -analyzer-output=plist-multi-file -o %t.plist %s
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/objc-arc.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/objc-arc.m.plist
 
 typedef signed char BOOL;
 typedef struct _NSZone NSZone;
 @class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
 typedef unsigned long NSUInteger;
 
 @protocol NSObject
 - (BOOL)isEqual:(id)object;

test/Analysis/plist-macros.cpp

 // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -verify %s
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix -analyzer-output=plist-multi-file %s -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-macros.cpp.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-macros.cpp.plist
 
 
 typedef __typeof(sizeof(int)) size_t;
 void *malloc(size_t);
 
 #define mallocmemory int *x = (int*)malloc(12);
 void noteOnMacro(int y) {
   y++;

test/Analysis/plist-output-alternate.m

 // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.RetainCount,alpha.core -fblocks -analyzer-output=plist -o %t %s
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-output-alternate.m.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/plist-output-alternate.m.plist
 
 void test_null_init(void) {
   int *p = 0;
   *p = 0xDEADBEEF;
 }
 
 void test_null_assign(void) {
   int *p;

test/Analysis/plist-output.m

 // RUN: %clang_analyze_cc1 -analyzer-config eagerly-assume=false %s -analyzer-checker=osx.cocoa.RetainCount,deadcode.DeadStores,core -analyzer-output=plist -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/plist-output.m.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/plist-output.m.plist
 
 void test_null_init(void) {
   int *p = 0;
   *p = 0xDEADBEEF;
 }
 
 void test_null_assign(void) {
   int *p;

test/Analysis/retain-release-path-notes.m

 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -analyzer-output=text -verify %s
 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,osx.coreFoundation.CFRetainRelease,osx.cocoa.ClassRelease,osx.cocoa.RetainCount -analyzer-store=region -analyzer-output=plist-multi-file %s -o %t
-// RUN: cat %t | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/retain-release-path-notes.m.plist
+// RUN: cat %t | %diff_plist %S/Inputs/expected-plists/retain-release-path-notes.m.plist
 
 /***
 This file is for testing the path-sensitive notes for retain/release errors.
 Its goal is to have simple branch coverage of any path-based diagnostics,
 not to actually check all possible retain/release errors.
 
 This file includes notes that only appear in a ref-counted analysis. 
 GC-specific notes should go in retain-release-path-notes-gc.m.

test/Analysis/unix-fns.c

 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,unix.API,osx.API,optin.portability %s -analyzer-store=region -analyzer-output=plist -analyzer-config faux-bodies=true  -fblocks -verify -o %t.plist
-// RUN: cat %t.plist | diff -u -w -I "<string>/" -I "<string>.:" -I "version" - %S/Inputs/expected-plists/unix-fns.c.plist
+// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/unix-fns.c.plist
 // RUN: mkdir -p %t.dir
 // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.API,osx.API,optin.portability -analyzer-output=html -analyzer-config faux-bodies=true -fblocks -o %t.dir %s
 // RUN: rm -fR %t.dir
 
 
 struct _opaque_pthread_once_t {
   long __sig;
   char __opaque[8];