method.super references now ES3-compatible

This is a bugfix; the bug was introduced in v0.2.3.

In ECMAScript 5, reserved keywords can be used to reference the field of an
object in dot notation (e.g. method.super), but in ES3 this is prohibited;
in these cases, method['super'] must be used. To maintain ES3 compatiblity,
GNU ease.js will use the latter within its code.

Of course, if you are developing software that need not support ES3, then
you can use the dot notation yourself in your own code.

This does not sway my decision to use `super`---ES3 will soon (hopefully)
become extinct, and would be already were it not for the terrible influence
of Microsloth's outdated browsers.

lib/MethodWrappers.js

@@ -59,7 +59,11 @@ exports.standard = {
             return retval;
         };
 
-        retf.super = super_method;
+        // `super` is reserved and, in ES3, this causes problems with the
+        // dot-notation; while `foo.super` will work fine in modern (ES5)
+        // browsers, we need to maintain our ES3 compatibility
+        retf['super'] = super_method;
+
         return retf;
     },
 

test/MethodWrappersTest.js

@@ -229,8 +229,9 @@ require( 'common' ).testCase(
         ;
 
         // we should be able to invoke the super method by override.super,
-        // which is added atop of the wrapper
-        this.assertStrictEqual( override.super(), expected );
+        // which is added atop of the wrapper (note that we quote it to avoid
+        // problems with ES3 engines)
+        this.assertStrictEqual( override['super'](), expected );
     },