Add a stub frontend action for BoostCon, for next week's workshop.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103258 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Driver/CC1Options.td b/include/clang/Driver/CC1Options.td
index 9ac6ad3..b30663a 100644
--- a/include/clang/Driver/CC1Options.td
+++ b/include/clang/Driver/CC1Options.td
@@ -296,6 +296,8 @@
   HelpText<"Build ASTs and then debug dump them">;
 def ast_view : Flag<"-ast-view">,
   HelpText<"Build ASTs and view them with GraphViz">;
+def boostcon : Flag<"-boostcon">,
+  HelpText<"BoostCon workshop mode">;
 def print_decl_contexts : Flag<"-print-decl-contexts">,
   HelpText<"Print DeclContexts and their Decls">;
 def emit_pth : Flag<"-emit-pth">,