[Support] Update missed tests with lazy caching behavior.

[mysterymath]

Summary

Fixes test failures created by https://reviews.llvm.org/D117589.

[zhuhan0]

Thanks for the quick fix.

llvm/test/tools/gold/X86/cache.ll

 ; Verify that enabling caching is ignoring module when we emit them without hash.
 ; RUN: opt -module-summary %s -o %t.o
 ; RUN: opt -module-summary %p/Inputs/cache.ll -o %t2.o
 
 ; RUN: rm -Rf %t.cache
 ; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold%shlibext \
 ; RUN:     --plugin-opt=thinlto \
 ; RUN:     --plugin-opt=cache-dir=%t.cache \
 ; RUN:     -o %t3.o %t2.o %t.o
 
-; We should just get the timestamp file
-; RUN: ls %t.cache | count 1
+; Since nothing was added to the cache, there shouldn't be a timestamp file yet.
+; RUN: not ls %t.cache
 
 
 ; Verify that enabling caching is working with module with hash.
 
 ; RUN: opt -module-hash -module-summary %s -o %t.o
 ; RUN: opt -module-hash -module-summary %p/Inputs/cache.ll -o %t2.o
 
 ; RUN: rm -Rf %t.cache