Revert "Reland "[Win32][ELF] Make CodeView a DebugInfoFormat only for…

… COFF format" (#87987)"

This reverts commit 4a93872.

Sorry, there're still buildbot failures.

clang/lib/Driver/ToolChains/MSVC.h

@@ -61,8 +61,9 @@ class LLVM_LIBRARY_VISIBILITY MSVCToolChain : public ToolChain {
   /// formats, and to DWARF otherwise. Users can use -gcodeview and -gdwarf to
   /// override the default.
   llvm::codegenoptions::DebugInfoFormat getDefaultDebugFormat() const override {
-    return getTriple().isOSBinFormatCOFF() ? llvm::codegenoptions::DIF_CodeView
-                                           : llvm::codegenoptions::DIF_DWARF;
+    return getTriple().isOSBinFormatMachO()
+               ? llvm::codegenoptions::DIF_DWARF
+               : llvm::codegenoptions::DIF_CodeView;
   }
 
   /// Set the debugger tuning to "default", since we're definitely not tuning

clang/test/Driver/gcodeview-command-line.c

@@ -1,6 +1,5 @@
 // Note: %s must be preceded by --, otherwise it may be interpreted as a
 // command-line option, e.g. on Mac where %s is commonly under /Users.
-// REQUIRES: aarch64-registered-target,arm-registered-target,x86-registered-target
 
 // ON-NOT: "-gno-codview-commandline"
 // OFF: "-gno-codeview-command-line"