[clang][driver] Remove an unused parameter. NFC.

- Group relevant code together.

clang/lib/Driver/ToolChains/Clang.cpp

@@ -3607,8 +3607,7 @@ static DwarfFissionKind getDebugFissionKind(const Driver &D,
 
 static void RenderDebugOptions(const ToolChain &TC, const Driver &D,
                                const llvm::Triple &T, const ArgList &Args,
-                               bool EmitCodeView, bool IsWindowsMSVC,
-                               ArgStringList &CmdArgs,
+                               bool EmitCodeView, ArgStringList &CmdArgs,
                                codegenoptions::DebugInfoKind &DebugInfoKind,
                                DwarfFissionKind &DwarfFission) {
   if (Args.hasFlag(options::OPT_fdebug_info_for_profiling,
@@ -4651,8 +4650,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     AddClangCLArgs(Args, InputType, CmdArgs, &DebugInfoKind, &EmitCodeView);
 
   DwarfFissionKind DwarfFission;
-  RenderDebugOptions(TC, D, RawTriple, Args, EmitCodeView, IsWindowsMSVC,
-                     CmdArgs, DebugInfoKind, DwarfFission);
+  RenderDebugOptions(TC, D, RawTriple, Args, EmitCodeView, CmdArgs,
+                     DebugInfoKind, DwarfFission);
 
   // Add the split debug info name to the command lines here so we
   // can propagate it to the backend.
@@ -5352,16 +5351,16 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
                    RawTriple.isOSDarwin() && !KernelOrKext))
     CmdArgs.push_back("-fregister-global-dtors-with-atexit");
 
-  // -fms-extensions=0 is default.
-  if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
-                   IsWindowsMSVC))
-    CmdArgs.push_back("-fms-extensions");
-
   // -fno-use-line-directives is default.
   if (Args.hasFlag(options::OPT_fuse_line_directives,
                    options::OPT_fno_use_line_directives, false))
     CmdArgs.push_back("-fuse-line-directives");
 
+  // -fms-extensions=0 is default.
+  if (Args.hasFlag(options::OPT_fms_extensions, options::OPT_fno_ms_extensions,
+                   IsWindowsMSVC))
+    CmdArgs.push_back("-fms-extensions");
+
   // -fms-compatibility=0 is default.
   bool IsMSVCCompat = Args.hasFlag(
       options::OPT_fms_compatibility, options::OPT_fno_ms_compatibility,