Port Migator option flags to new option parsing system

[jansvoboda11]

Summary

Depends on D83406

[Bigcheese]

lgtm

[jansvoboda11]

Taking over this patch, as Daniel is no longer involved.

clang/include/clang/Driver/Options.td

 
 def analyzer_werror : Flag<["-"], "analyzer-werror">,
   HelpText<"Emit analyzer results as errors rather than warnings">;
 
 //===----------------------------------------------------------------------===//
 // Migrator Options
 //===----------------------------------------------------------------------===//
 def migrator_no_nsalloc_error : Flag<["-"], "no-ns-alloc-error">,
-  HelpText<"Do not error on use of NSAllocateCollectable/NSReallocateCollectable">;
+  HelpText<"Do not error on use of NSAllocateCollectable/NSReallocateCollectable">,
+  MarshallingInfoFlag<"MigratorOpts.NoNSAllocReallocError">;
 
 def migrator_no_finalize_removal : Flag<["-"], "no-finalize-removal">,
-  HelpText<"Do not remove finalize method in gc mode">;
+  HelpText<"Do not remove finalize method in gc mode">,
+  MarshallingInfoFlag<"MigratorOpts.NoFinalizeRemoval">;
 
 //===----------------------------------------------------------------------===//
 // CodeGen Options
 //===----------------------------------------------------------------------===//
 
 let Flags = [CC1Option, CC1AsOption, NoDriverOption] in {
 def debug_info_kind_EQ : Joined<["-"], "debug-info-kind=">;
 def debug_info_macro : Flag<["-"], "debug-info-macro">,

clang/lib/Frontend/CompilerInvocation.cpp

Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir"
                                                            << "a filename";
 
   if (!AnOpts.ModelPath.empty() &&
       !llvm::sys::fs::is_directory(AnOpts.ModelPath))
     Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path"
                                                            << "a filename";
 }
 
-static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
-  Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
-  Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
-  return true;
-}
-
 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
   Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
   Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
 }
 
 /// Create a new Regex instance out of the string value in \p RpassArg.
 /// It returns a pointer to the newly generated Regex instance.
 static std::shared_ptr<llvm::Regex>
else
           << ArgString << Nearest;
     Success = false;
   }
 
   Success &= Res.parseSimpleArgs(Args, Diags);
   FixupInvocation(Res);
 
   Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
-  Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
   ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
   if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
       Res.getDependencyOutputOpts().Targets.empty()) {
     Diags.Report(diag::err_fe_dependency_file_requires_MT);
     Success = false;
   }
   Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
                                  /*DefaultDiagColor=*/false);