Relax filechecks in r336405 tests

They were failing in Chromium's packaging builds with:

  C:\b\rr\tmphqfaff\w\src\third_party\llvm\tools\lld\test\COFF\pdb-globals-dia-vfunc-collision2.test:24:8:
  error: expected string not found in input
  CHECK: func [0x00001060+ 0 - 0x0000106c-12 | sizeof= 12] (FPO) virtual int __cdecl A132()
         ^
  <stdin>:8:11: note: scanning from here
   struct S [sizeof = 8] {
            ^
  <stdin>:9:2: note: possible intended match here
   func [0x00001060+ 0 - 0x0000106c-12 | sizeof= 12] (FPO) virtual int __cdecl S::A132()
   ^

Maybe due to different DIA versions.

llvm-svn: 336424