Patch to build AST for property implementation declarations and
to print declaration from its AST.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50117 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/DeclObjC.cpp b/lib/AST/DeclObjC.cpp
index d3592e1..ef4a6e1 100644
--- a/lib/AST/DeclObjC.cpp
+++ b/lib/AST/DeclObjC.cpp
@@ -517,5 +517,14 @@
   return 0;
 }
 
+ObjCPropertyImplDecl *ObjCPropertyImplDecl::Create(ASTContext &C,
+                                                   SourceLocation atLoc,
+                                                   SourceLocation L,
+                                                   ObjCPropertyDecl *property,
+                                                   PropertyImplKind kind,
+                                                   ObjCIvarDecl *ivar) {
+  void *Mem = C.getAllocator().Allocate<ObjCPropertyImplDecl>();
+  return new (Mem) ObjCPropertyImplDecl(atLoc, L, property, kind, ivar);
+}