[Driver] Remove -coverage-notes-file and -coverage-data-file in favor of their Joined = form

Author: MaskRay

clang/include/clang/Driver/Options.td

@@ -6559,16 +6559,10 @@ def fdump_vtable_layouts : Flag<["-"], "fdump-vtable-layouts">,
 def fmerge_functions : Flag<["-"], "fmerge-functions">,
   HelpText<"Permit merging of identical functions when optimizing.">,
   MarshallingInfoFlag<CodeGenOpts<"MergeFunctions">>;
-def coverage_data_file : Separate<["-"], "coverage-data-file">,
-  HelpText<"Emit coverage data to this filename.">,
+def : Joined<["-"], "coverage-data-file=">,
   MarshallingInfoString<CodeGenOpts<"CoverageDataFile">>;
-def coverage_data_file_EQ : Joined<["-"], "coverage-data-file=">,
-  Alias<coverage_data_file>;
-def coverage_notes_file : Separate<["-"], "coverage-notes-file">,
-  HelpText<"Emit coverage notes to this filename.">,
+def : Joined<["-"], "coverage-notes-file=">,
   MarshallingInfoString<CodeGenOpts<"CoverageNotesFile">>;
-def coverage_notes_file_EQ : Joined<["-"], "coverage-notes-file=">,
-  Alias<coverage_notes_file>;
 def coverage_version_EQ : Joined<["-"], "coverage-version=">,
   HelpText<"Four-byte version string for gcov files.">;
 def dump_coverage_mapping : Flag<["-"], "dump-coverage-mapping">,