move unsupported warning into a centralized place.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44502 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CodeGen/CodeGenFunction.h b/CodeGen/CodeGenFunction.h
index e4bf09b..2fd8063 100644
--- a/CodeGen/CodeGenFunction.h
+++ b/CodeGen/CodeGenFunction.h
@@ -269,6 +269,10 @@
   
   
   void EmitBlock(llvm::BasicBlock *BB);
+  
+  /// WarnUnsupported - Print out a warning that codegen doesn't support the
+  /// specified stmt yet.
+  void WarnUnsupported(const Stmt *S);
 
   //===--------------------------------------------------------------------===//
   //                                  Helpers