YANG: Restriction resolution implementation

Change-Id: I69503e8229def07b289a0c8c762bfe0ae5530232
diff --git a/src/test/resources/SelfResolutionWhenTypeAndTypedefAtRootLevel.yang b/src/test/resources/SelfResolutionWhenTypeAndTypedefAtRootLevel.yang
index b6b08a7..da6795b 100644
--- a/src/test/resources/SelfResolutionWhenTypeAndTypedefAtRootLevel.yang
+++ b/src/test/resources/SelfResolutionWhenTypeAndTypedefAtRootLevel.yang
@@ -6,6 +6,6 @@
         type hello;
     }
     typedef hello {
-        type String;
+        type string;
     }
 }