Initial work to improve documentation for Clang's diagnostics, from Matthieu Monrocq

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129614 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index 6938991..3457a20 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -230,8 +230,10 @@
   HelpText<"Print source range spans in numeric form">;
 def fdiagnostics_parseable_fixits : Flag<"-fdiagnostics-parseable-fixits">,
   HelpText<"Print fix-its in machine parseable form">;
+def fdiagnostics_show_name : Flag<"-fdiagnostics-show-name">,
+  HelpText<"Print diagnostic name">;
 def fdiagnostics_show_option : Flag<"-fdiagnostics-show-option">,
-  HelpText<"Print diagnostic name with mappable diagnostics">;
+  HelpText<"Print option name with mappable diagnostics">;
 def fdiagnostics_show_category : Separate<"-fdiagnostics-show-category">,
   HelpText<"Print diagnostic category">;
 def fdiagnostics_show_note_include_stack :