Make test corrections necessary due to changing llvm::HashString

[scott.smith]

Summary

Certain test output is dependent on the order of the hash value computed by llvm::HashString. Correct those so D32509 can be committed.

[ruiu]

Please add this to https://reviews.llvm.org/D32509. I'll commit this and that as one patch.

test/CodeGen/target-features-error-2.c

-// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -S -verify -o - -D NEED_SSE42
+// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -S -verify -o - -D NEED_SSE41
 // RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -S -verify -o - -D NEED_AVX_1
 // RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -S -verify -o - -D NEED_AVX_2
 // RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -S -verify -o - -D NEED_AVX_3

 #define __MM_MALLOC_H
 #include <x86intrin.h>
 
-#if NEED_SSE42
+// Really, this needs AVX, but because targetting AVX includes all the SSE features too, and
+// features are sorted by hash function, and we just return the first missing feature, then we end
+// up returning the subfeature sse4.1 instead of avx.
+#if NEED_SSE41
 int baz(__m256i a) {
-  return _mm256_extract_epi32(a, 3); // expected-error {{always_inline function '_mm256_extract_epi32' requires target feature 'sse4.2', but would be inlined into function 'baz' that is compiled without support for 'sse4.2'}}
+  return _mm256_extract_epi32(a, 3); // expected-error {{always_inline function '_mm256_extract_epi32' requires target feature 'sse4.1', but would be inlined into function 'baz' that is compiled without support for 'sse4.1'}}
 }
 #endif
 

test/CodeGen/target-features-error.c

   return a + 4;
 }
 int bar() {
-  return foo(4); // expected-error {{always_inline function 'foo' requires target feature 'sse4.2', but would be inlined into function 'bar' that is compiled without support for 'sse4.2'}}
+  return foo(4); // expected-error {{always_inline function 'foo' requires target feature 'sse4.1', but would be inlined into function 'bar' that is compiled without support for 'sse4.1'}}
 }
-

test/SemaCXX/typo-correction-delayed.cpp

 struct NestedNode {
   NestedNode* Nest();
   NestedNode* next();
-  string text() const;
+  // Note, this test is dependent on the order in which identifiers are passed
+  // to the typo corrector, which is based on the hash function used.  For
+  // consistency, I am making the next keyword the first identifier returned.
+  string eext() const;
 };
 void f(NestedNode *node) {
   // There are two equidistant, usable corrections for Next: next and Nest

unittests/Tooling/CompilationDatabaseTest.cpp

 
   std::vector<std::string> expected_files;
   SmallString<16> PathStorage;
-  llvm::sys::path::native("//net/dir/file1", PathStorage);
-  expected_files.push_back(PathStorage.str());
   llvm::sys::path::native("//net/dir/file2", PathStorage);
   expected_files.push_back(PathStorage.str());
+  llvm::sys::path::native("//net/dir/file1", PathStorage);
+  expected_files.push_back(PathStorage.str());
   EXPECT_EQ(expected_files,
             getAllFiles("[{\"directory\":\"//net/dir\","
                         "\"command\":\"command\","