Add the location of the interface reference to IBOutletCollectionAttr.
Depends on a llvm tablegen commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139618 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/Attr.td b/include/clang/Basic/Attr.td
index 9289bd2..4db8ef2 100644
--- a/include/clang/Basic/Attr.td
+++ b/include/clang/Basic/Attr.td
@@ -54,6 +54,7 @@
 class FunctionArgument<string name> : Argument<name>;
 class TypeArgument<string name> : Argument<name>;
 class UnsignedArgument<string name> : Argument<name>;
+class SourceLocArgument<string name> : Argument<name>;
 class VariadicUnsignedArgument<string name> : Argument<name>;
 class VariadicExprArgument<string name> : Argument<name>;
 
@@ -287,7 +288,7 @@
 
 def IBOutletCollection : InheritableAttr {
   let Spellings = ["iboutletcollection"];
-  let Args = [TypeArgument<"InterFace">];
+  let Args = [TypeArgument<"InterFace">, SourceLocArgument<"InterFaceLoc">];
 }
 
 def Malloc : InheritableAttr {
diff --git a/lib/Sema/SemaDeclAttr.cpp b/lib/Sema/SemaDeclAttr.cpp
index 7c7e3ab..a887ce8 100644
--- a/lib/Sema/SemaDeclAttr.cpp
+++ b/lib/Sema/SemaDeclAttr.cpp
@@ -815,8 +815,8 @@
     S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II;
     return;
   }
-  D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(), S.Context,
-                                                      QT));
+  D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context,
+                                                   QT, Attr.getParameterLoc()));
 }
 
 static void possibleTransparentUnionPointerType(QualType &T) {