Moved CollectObjCIvars to more commonly available place
for future use.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66184 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 2100a66..4579fb5 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -576,8 +576,8 @@
   Alignment = std::max(Alignment, FieldAlign);
 }
 
-static void CollectObjCIvars(const ObjCInterfaceDecl *OI,
-                             std::vector<FieldDecl*> &Fields) {
+void ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI,
+                             std::vector<FieldDecl*> &Fields) const {
   const ObjCInterfaceDecl *SuperClass = OI->getSuperClass();
   if (SuperClass)
     CollectObjCIvars(SuperClass, Fields);