This patch will build the Records lazily per Steve's comments.
Note that one test duplicate-ivar-check.m will fail because I 
need to re-implement duplicate ivar checking.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61154 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 6ef9ecd..5ae266e 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -3029,7 +3029,7 @@
     ObjCIvarDecl **ClsFields = reinterpret_cast<ObjCIvarDecl**>(&RecFields[0]);
     if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(EnclosingDecl)) {
       ID->addInstanceVariablesToClass(ClsFields, RecFields.size(), RBrac);
-      ID->addRecordToClass(Context);
+#if 0
       // Must enforce the rule that ivars in the base classes may not be
       // duplicates.
       FieldIDs.clear();
@@ -3049,6 +3049,7 @@
               }
           }
       }
+#endif
     }
     else if (ObjCImplementationDecl *IMPDecl = 
                dyn_cast<ObjCImplementationDecl>(EnclosingDecl)) {