Remove non-const form of lookupFieldDeclForIvar.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69563 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index f7936fd..2bbb15f 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -764,7 +764,8 @@
       Context.getObjCEncodingForType((*iter)->getType(), TypeStr);
       IvarTypes.push_back(CGM.GetAddrOfConstantCString(TypeStr));
       // Get the offset
-      FieldDecl *Field = ClassDecl->lookupFieldDeclForIvar(Context, (*iter));
+      const FieldDecl *Field = 
+        ClassDecl->lookupFieldDeclForIvar(Context, (*iter));
       int offset =
         (int)Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(Field));
       IvarOffsets.push_back(
@@ -1105,7 +1106,8 @@
                             CGM.getContext().getObjCInterfaceType(Interface));
   const llvm::StructLayout *Layout =
     CGM.getTargetData().getStructLayout(cast<llvm::StructType>(InterfaceLTy));
-  FieldDecl *Field = Interface->lookupFieldDeclForIvar(CGM.getContext(), Ivar);
+  const FieldDecl *Field = 
+    Interface->lookupFieldDeclForIvar(CGM.getContext(), Ivar);
   uint64_t Offset =
     Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(Field));