[clang] [LinkerWrapper] Try to fix testing on Windows (PR #130285)

[Michael Kruse via cfe-commits]

================
@@ -599,9 +599,10 @@ Expected<StringRef> writeOffloadFile(const OffloadFile &File) {
 
   StringRef Prefix =
       sys::path::stem(Binary.getMemoryBufferRef().getBufferIdentifier());
-
-  auto TempFileOrErr = createOutputFile(
-      Prefix + "-" + Binary.getTriple() + "-" + Binary.getArch(), "o");
+  std::string Filename =
+      (Prefix + "-" + Binary.getTriple() + "-" + Binary.getArch()).str();
+  llvm::replace(Filename, ':', '-');
----------------
Meinersbur wrote:

```suggestion
  llvm::replace(Filename, ':', '_');
```
inconsistency with PR description

https://github.com/llvm/llvm-project/pull/130285