baseservices\exceptions\fullpdbstacktrace fails in ilasmroundtrip #131255

- coreclr windows x64 Checked ilasmroundtrip @ Windows.10.Amd64.Open
- coreclr windows x86 Checked ilasmroundtrip @ Windows.10.Amd64.Open
  - Directed_3
  - baseservices/exceptions/fullpdbstacktrace/FullPdbThrower/FullPdbThrower.cmd

ILASM RoundTrips
ILASM RoundTrip for FullPdbThrower.dll
C:\h\w\BB2E09D8\p/ildasm -raweh -unicode -out=IL-RT\FullPdbThrower.il IL-RT\FullPdbThrower.dll
C:\h\w\BB2E09D8\p\ilasm -output=FullPdbThrower.dll -DET -DEBUG IL-RT\FullPdbThrower.il
C:\h\w\BB2E09D8\p\ilasm -output=FullPdbThrower.dll -DET -DEBUG IL-RT\FullPdbThrower.il
ILASM determinism succeeded
C:\h\w\BB2E09D8\p\ilasm -output=FullPdbThrower.pdb -DET -DEBUG IL-RT\FullPdbThrower.il
C:\h\w\BB2E09D8\p\ilasm -output=FullPdbThrower.pdb -DET -DEBUG IL-RT\FullPdbThrower.il
ILASM PDB determinism succeeded

ILASM RoundTrip for TestLibrary.dll
C:\h\w\BB2E09D8\p/ildasm -raweh -unicode -out=IL-RT\TestLibrary.il IL-RT\TestLibrary.dll
C:\h\w\BB2E09D8\p\ilasm -output=TestLibrary.dll -DET -DLL IL-RT\TestLibrary.il
C:\h\w\BB2E09D8\p\ilasm -output=TestLibrary.dll -DET -DLL IL-RT\TestLibrary.il
ILASM determinism succeeded
C:\h\w\BB2E09D8\p\ilasm -output=TestLibrary.pdb -DET -DLL -DEBUG IL-RT\TestLibrary.il
C:\h\w\BB2E09D8\p\ilasm -output=TestLibrary.pdb -DET -DLL -DEBUG IL-RT\TestLibrary.il
ILASM PDB determinism succeeded


 "C:\h\w\BB2E09D8\p\corerun.exe" -p "System.Reflection.Metadata.MetadataUpdater.IsSupported=false" -p "System.Runtime.Serialization.EnableUnsafeBinaryFormatterSerialization=true"  FullPdbThrower.dll 
Xunit.Sdk.ContainsException: Assert.Contains() Failure: Sub-string not found
String:    "System.InvalidOperationException: Exception from f"???
Not found: "FullPdbThrower.cs"
   at Xunit.Assert.Contains(String expectedSubstring, String actualString) in /_/src/arcade/src/Microsoft.DotNet.XUnitAssert/src/StringAsserts.cs:line 35
   at FullPdbThrower.ExceptionToString_FullPdb_IncludesSourceLine()
   at __GeneratedMainWrapper.Main()
Expected: 100
Actual: 101
END EXECUTION - FAILED
FAILED