Make lazyload_metadata.ll resilient to the addition of new metadata kinds

[herzka]

Summary

The specific number of records loaded depends on the number of kinds, but the difference between the lazy and not lazy cases does not.

[rnk]

This breaks the test suite if awk is not available, as is the case on our windows builders. Reverted in ad1f7a895ba452ae8d9d0743bdbf8337cf36c5d9.

llvm/test/ThinLTO/X86/lazyload_metadata.ll

 ; Do setup work for all below tests: generate bitcode and combined index
 ; RUN: opt -module-summary %s -o %t.bc -bitcode-mdindex-threshold=0
 ; RUN: opt -module-summary %p/Inputs/lazyload_metadata.ll -o %t2.bc -bitcode-mdindex-threshold=0
 ; RUN: llvm-lto -thinlto-action=thinlink -o %t3.bc %t.bc %t2.bc
 ; REQUIRES: asserts
 
 ; Check that importing @globalfunc1 does not trigger loading all the global
 ; metadata for @globalfunc2 and @globalfunc3
 
-; RUN: llvm-lto -thinlto-action=import %t2.bc -thinlto-index=%t3.bc \
-; RUN:          -o /dev/null -stats \
-; RUN:  2>&1 | FileCheck %s -check-prefix=LAZY
-; LAZY: 65 bitcode-reader  - Number of Metadata records loaded
-; LAZY: 2 bitcode-reader  - Number of MDStrings loaded
-
-; RUN: llvm-lto -thinlto-action=import %t2.bc -thinlto-index=%t3.bc \
-; RUN:          -o /dev/null -disable-ondemand-mds-loading -stats \
-; RUN:  2>&1 | FileCheck %s -check-prefix=NOTLAZY
-; NOTLAZY: 74 bitcode-reader  - Number of Metadata records loaded
-; NOTLAZY: 7 bitcode-reader  - Number of MDStrings loaded
-
+; RUN: llvm-lto -thinlto-action=import %t2.bc -thinlto-index=%t3.bc -stats 2>&1 \
+; RUN:  | awk '{print "LAZY: " $0}' > %t4.txt
+; RUN: llvm-lto -thinlto-action=import %t2.bc -thinlto-index=%t3.bc -stats -disable-ondemand-mds-loading 2>&1 \
+; RUN:  | awk '{print "NOTLAZY: " $0}' > %t5.txt
+; RUN: cat %t4.txt %t5.txt | FileCheck %s
+
+; Check llvm-lto call with lazy loading enabled
+; CHECK: LAZY: [[#LAZY_RECORDS:]] bitcode-reader  - Number of Metadata records loaded
+; CHECK: LAZY: 2 bitcode-reader  - Number of MDStrings loaded
+
+; Check llvm-lto call with lazy loading disabled
+; CHECK: NOTLAZY: [[#LAZY_RECORDS+9]] bitcode-reader  - Number of Metadata records loaded
+; CHECK: NOTLAZY: 7 bitcode-reader  - Number of MDStrings loaded
 
 target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.11.0"
 
 define void @globalfunc1(i32 %arg) {
   %x = call i1 @llvm.type.test(i8* undef, metadata !"typeid1")
   %tmp = add i32 %arg, 0, !metadata !2
   ret void