[clang] [clang-cl] Don't count linker inputs against /Fo and /Fa (PR #232611)

[Hans Wennborg via cfe-commits]

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@@ -3386,10 +3386,15 @@ void Driver::handleArguments(Compilation &C, DerivedArgList &Args,
                              const InputList &Inputs,
                              ActionList &Actions) const {
 
+  // Linker inputs go straight to the linker, so they should not be counted
+  // toward the compiler outputs that /Fo and /Fa name.
+  unsigned NumCompiledInputs = llvm::count_if(
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zmodem wrote:

Most invocations don't use /Fo or /Fa. Can we avoid running this loop in such cases?

https://github.com/llvm/llvm-project/pull/232611