fix es6-property-method-assignment tests name

test/fixtures/transformation/es6-property-method-assignment/method-self-reference/actual.js

@@ -14,6 +14,6 @@ var bar = {
 var foobar = 123;
 var foobar2 = {
   foobar() {
-    return foobar;
+    console.log(foobar);
   }
 };

test/fixtures/transformation/es6-property-method-assignment/method-self-reference/expected.js

@@ -39,4 +39,3 @@ var foobar2 = {
     console.log(foobar);
   })
 };
-