[arcmt] Fix an assertion hit in rdar://10336125; a bit too complicated to reduce.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143754 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ARCMigrate/TransARCAssign.cpp b/lib/ARCMigrate/TransARCAssign.cpp
index 1f10196..cfa6da1 100644
--- a/lib/ARCMigrate/TransARCAssign.cpp
+++ b/lib/ARCMigrate/TransARCAssign.cpp
@@ -39,6 +39,9 @@
   ARCAssignChecker(MigrationPass &pass) : Pass(pass) { }
 
   bool VisitBinaryOperator(BinaryOperator *Exp) {
+    if (Exp->getType()->isDependentType())
+      return true;
+
     Expr *E = Exp->getLHS();
     SourceLocation OrigLoc = E->getExprLoc();
     SourceLocation Loc = OrigLoc;