[lld] [lld][COFF] Add /linkreprofullpathrsp flag (PR #165449)

[Alexandre Ganea via llvm-commits]

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@@ -193,6 +199,9 @@ class LinkerDriver {
   int sdkMajor = 0;
   llvm::SmallString<128> windowsSdkLibPath;
 
+  // For linkreprofullpathrsp
+  std::unique_ptr<llvm::raw_fd_ostream> reproFile = nullptr;
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aganea wrote:

`= nullptr` is not needed.

https://github.com/llvm/llvm-project/pull/165449