Add two options for playing with modules.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111166 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/ExecuteCompilerInvocation.cpp b/lib/Frontend/ExecuteCompilerInvocation.cpp
index c69d844..b432e8f 100644
--- a/lib/Frontend/ExecuteCompilerInvocation.cpp
+++ b/lib/Frontend/ExecuteCompilerInvocation.cpp
@@ -39,6 +39,7 @@
   case ASTPrintXML:            return new ASTPrintXMLAction();
   case ASTView:                return new ASTViewAction();
   case BoostCon:               return new BoostConAction();
+  case CreateModule:           return 0;
   case DumpRawTokens:          return new DumpRawTokensAction();
   case DumpTokens:             return new DumpTokensAction();
   case EmitAssembly:           return new EmitAssemblyAction();