[Driver] Change some cc1 only JoinedOrSeparate long options to Separate

They are error-prone as they do not end with `=`.
Note: for driver -isystem/etc, we have to support the Joined form.

diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index a3134fd..d03336f 100644 (file)
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -4275,7 +4275,7 @@ def : Flag<["-"], "integrated-as">, Alias<fintegrated_as>, Flags<[NoXarchOption]
 def : Flag<["-"], "no-integrated-as">, Alias<fno_integrated_as>,
       Flags<[CC1Option, FlangOption, NoXarchOption]>;
 
-def working_directory : JoinedOrSeparate<["-"], "working-directory">, Flags<[CC1Option]>,
+def working_directory : Separate<["-"], "working-directory">, Flags<[CC1Option]>,
   HelpText<"Resolve file paths relative to the specified directory">,
   MarshallingInfoString<FileSystemOpts<"WorkingDir">>;
 def working_directory_EQ : Joined<["-"], "working-directory=">, Flags<[CC1Option]>,
@@ -6204,20 +6204,20 @@ def fmodules_strict_context_hash : Flag<["-"], "fmodules-strict-context-hash">,
   HelpText<"Enable hashing of all compiler options that could impact the "
            "semantics of a module in an implicit build">,
   MarshallingInfoFlag<HeaderSearchOpts<"ModulesStrictContextHash">>;
-def c_isystem : JoinedOrSeparate<["-"], "c-isystem">, MetaVarName<"<directory>">,
+def c_isystem : Separate<["-"], "c-isystem">, MetaVarName<"<directory>">,
   HelpText<"Add directory to the C SYSTEM include search path">;
-def objc_isystem : JoinedOrSeparate<["-"], "objc-isystem">,
+def objc_isystem : Separate<["-"], "objc-isystem">,
   MetaVarName<"<directory>">,
   HelpText<"Add directory to the ObjC SYSTEM include search path">;
-def objcxx_isystem : JoinedOrSeparate<["-"], "objcxx-isystem">,
+def objcxx_isystem : Separate<["-"], "objcxx-isystem">,
   MetaVarName<"<directory>">,
   HelpText<"Add directory to the ObjC++ SYSTEM include search path">;
-def internal_isystem : JoinedOrSeparate<["-"], "internal-isystem">,
+def internal_isystem : Separate<["-"], "internal-isystem">,
   MetaVarName<"<directory>">,
   HelpText<"Add directory to the internal system include search path; these "
            "are assumed to not be user-provided and are used to model system "
            "and standard headers' paths.">;
-def internal_externc_isystem : JoinedOrSeparate<["-"], "internal-externc-isystem">,
+def internal_externc_isystem : Separate<["-"], "internal-externc-isystem">,
   MetaVarName<"<directory>">,
   HelpText<"Add directory to the internal system include search path with "
            "implicit extern \"C\" semantics; these are assumed to not be "