Support for implicit property assignment. Error assigning to
'implicit' property with no 'setter'.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59878 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 6a15ea6..0ff345a 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -557,6 +557,12 @@
         return MLV_ReadonlyProperty;
     }
   }
+  // Assigning to an 'implicit' property?
+  if (getStmtClass() == ObjCKVCRefExprClass) {
+    const ObjCKVCRefExpr* KVCExpr = cast<ObjCKVCRefExpr>(this);
+    if (KVCExpr->getSetterMethod() == 0)
+      return MLV_NoSetterProperty;
+  }
   return MLV_Valid;    
 }
 
diff --git a/lib/AST/StmtSerialization.cpp b/lib/AST/StmtSerialization.cpp
index 2d6f3c7..8bf7039 100644
--- a/lib/AST/StmtSerialization.cpp
+++ b/lib/AST/StmtSerialization.cpp
@@ -1173,7 +1173,7 @@
                                            ASTContext& C) {
   SourceLocation Loc = SourceLocation::ReadVal(D);
   QualType T = QualType::ReadVal(D);
-  ObjCKVCRefExpr* dr = new ObjCKVCRefExpr(NULL,T,Loc,0);
+  ObjCKVCRefExpr* dr = new ObjCKVCRefExpr(NULL,T,NULL,Loc,0);
   D.ReadPtr(dr->Setter,false);
   D.ReadPtr(dr->Getter,false);
   return dr;