Stub out CodeGenFunction::EmitObjCForCollectionStmt.

Add CodeGenFunction::EmitMemSetToZero and make AggExprEmitter::EmitAggregateClear use it.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55573 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp
index 6d3bd43..b766fe8 100644
--- a/lib/CodeGen/CGStmt.cpp
+++ b/lib/CodeGen/CGStmt.cpp
@@ -92,8 +92,8 @@
   case Stmt::ObjCAtSynchronizedStmtClass:
     ErrorUnsupported(S, "@synchronized statement");
     break;
-  case Stmt::ObjCForCollectionStmtClass:
-    ErrorUnsupported(S, "for ... in statement");
+  case Stmt::ObjCForCollectionStmtClass: 
+    EmitObjCForCollectionStmt(cast<ObjCForCollectionStmt>(*S));
     break;
   }
 }