[clang] [llvm] [CodeView] Flatten cmd args in frontend for LF_BUILDINFO (PR #106369)

[Saleem Abdulrasool via cfe-commits]

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@@ -322,6 +323,46 @@ static bool actionRequiresCodeGen(BackendAction Action) {
          Action != Backend_EmitLL;
 }
 
+static std::string flattenClangCommandLine(ArrayRef<std::string> Args,
+                                      StringRef MainFilename) {
+  if (Args.empty())
+  {
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compnerd wrote:

The braces are unnecessary here, but more importantly, they should be coddled.

https://github.com/llvm/llvm-project/pull/106369