Implements ES6 String.prototype.normalize method.

test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt

Index: test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt
diff --git a/test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt b/test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt
index 560be18e2f1800fe061213c60a81eaa7f2db8d4c..b8c4bec106ec3ba7414dec4e0351fba57ac9d9ac 100644
--- a/test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt
+++ b/test/webkit/fast/js/Object-getOwnPropertyNames-expected.txt
@@ -70,7 +70,7 @@ FAIL getSortedOwnPropertyNames(Function.prototype) should be apply,bind,call,con
 FAIL getSortedOwnPropertyNames(Array) should be isArray,length,name,prototype. Was arguments,caller,isArray,length,name,prototype.
 PASS getSortedOwnPropertyNames(Array.prototype) is ['concat', 'constructor', 'every', 'filter', 'forEach', 'indexOf', 'join', 'lastIndexOf', 'length', 'map', 'pop', 'push', 'reduce', 'reduceRight', 'reverse', 'shift', 'slice', 'some', 'sort', 'splice', 'toLocaleString', 'toString', 'unshift']
 FAIL getSortedOwnPropertyNames(String) should be fromCharCode,length,name,prototype. Was arguments,caller,fromCharCode,length,name,prototype.
-PASS getSortedOwnPropertyNames(String.prototype) is ['anchor', 'big', 'blink', 'bold', 'charAt', 'charCodeAt', 'concat', 'constructor', 'fixed', 'fontcolor', 'fontsize', 'indexOf', 'italics', 'lastIndexOf', 'length', 'link', 'localeCompare', 'match', 'replace', 'search', 'slice', 'small', 'split', 'strike', 'sub', 'substr', 'substring', 'sup', 'toLocaleLowerCase', 'toLocaleUpperCase', 'toLowerCase', 'toString', 'toUpperCase', 'trim', 'trimLeft', 'trimRight', 'valueOf']
+PASS getSortedOwnPropertyNames(String.prototype) is ['anchor', 'big', 'blink', 'bold', 'charAt', 'charCodeAt', 'concat', 'constructor', 'fixed', 'fontcolor', 'fontsize', 'indexOf', 'italics', 'lastIndexOf', 'length', 'link', 'localeCompare', 'match', 'normalize', 'replace', 'search', 'slice', 'small', 'split', 'strike', 'sub', 'substr', 'substring', 'sup', 'toLocaleLowerCase', 'toLocaleUpperCase', 'toLowerCase', 'toString', 'toUpperCase', 'trim', 'trimLeft', 'trimRight', 'valueOf']
 FAIL getSortedOwnPropertyNames(Boolean) should be length,name,prototype. Was arguments,caller,length,name,prototype.
 PASS getSortedOwnPropertyNames(Boolean.prototype) is ['constructor', 'toString', 'valueOf']
 FAIL getSortedOwnPropertyNames(Number) should be MAX_VALUE,MIN_VALUE,NEGATIVE_INFINITY,NaN,POSITIVE_INFINITY,length,name,prototype. Was EPSILON,MAX_SAFE_INTEGER,MAX_VALUE,MIN_SAFE_INTEGER,MIN_VALUE,NEGATIVE_INFINITY,NaN,POSITIVE_INFINITY,arguments,caller,isFinite,isInteger,isNaN,isSafeInteger,length,name,parseFloat,parseInt,prototype.