[clang] Accept `cl`-style output arguments (`/Fo`, `-Fo`) for `--fmodule-output` (PR #121046)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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``````````bash
git-clang-format --diff 4f4e2abb1a5ff1225d32410fd02b732d077aa056 ff22639d751a38e633a5b2e4fe42586d81b36499 --extensions cpp -- clang/lib/Driver/Driver.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 1bab4efc75..a59f7108c0 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -6099,10 +6099,12 @@ const char *Driver::GetNamedOutputPath(Compilation &C, const JobAction &JA,
   llvm::PrettyStackTraceString CrashInfo("Computing output path");
   // Output to a user requested destination?
   if (AtTopLevel && !isa<DsymutilJobAction>(JA) && !isa<VerifyJobAction>(JA)) {
-    // CL and not building a PCH. Not sure why the GNU-style driver doesn't need this.
-    // May need to rethink.
-    Arg *FinalOutput = IsCLMode() && !C.getArgs().hasArg(options::OPT__SLASH_Yc)
-            ? C.getArgs().getLastArg(options::OPT__SLASH_Fo, options::OPT__SLASH_Fo_COLON)
+    // CL and not building a PCH. Not sure why the GNU-style driver doesn't need
+    // this. May need to rethink.
+    Arg *FinalOutput =
+        IsCLMode() && !C.getArgs().hasArg(options::OPT__SLASH_Yc)
+            ? C.getArgs().getLastArg(options::OPT__SLASH_Fo,
+                                     options::OPT__SLASH_Fo_COLON)
             : C.getArgs().getLastArg(options::OPT_o);
 
     if (FinalOutput != nullptr) {

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https://github.com/llvm/llvm-project/pull/121046