Improve support for binding pattern

Including improvements for parameters, variable assignment and
catch parameter.

test/run-tests.js

@@ -30,10 +30,6 @@ run_ast_conversion_tests({
     iterations: 1000
 });
 
-var run_parser_tests = require('./parser.js');
-
-run_parser_tests();
-
 /* -----[ utils ]----- */
 
 function tmpl() {