Migrate more tests from blink repository.

test/webkit/fast/js/string-anchor-expected.txt

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-This tests that speculation recovery of destructive additions on unboxed integers works.
+This is a test case for String.prototype.anchor(name).
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
-PASS destructiveAddForBoxedInteger({x:1}, 2, 4) is 9
-PASS destructiveAddForBoxedInteger({x:2147483647}, 2, 4) is 2147483655
-PASS destructiveAddForBoxedInteger({x:2}, 2147483647, 4) is 4294967300
-PASS destructiveAddForBoxedInteger({x:2147483647}, 2147483647, 4) is 6442450945
-PASS destructiveAddForBoxedInteger({x:1}, 2, 2147483647) is 2147483652
+PASS '_'.anchor('b') is "<a name=\"b\">_</a>"
+PASS '<'.anchor('b') is "<a name=\"b\"><</a>"
+PASS '_'.anchor(0x2A) is "<a name=\"42\">_</a>"
+PASS '_'.anchor('"') is "<a name=\"&quot;\">_</a>"
+PASS '_'.anchor('" href="http://www.evil.com') is "<a name=\"&quot; href=&quot;http://www.evil.com\">_</a>"
+PASS String.prototype.anchor.call(0x2A, 0x2A) is "<a name=\"42\">42</a>"
+FAIL String.prototype.anchor.call(undefined) should throw TypeError: Type error. Was <a name="undefined">undefined</a>.
+FAIL String.prototype.anchor.call(null) should throw TypeError: Type error. Was <a name="undefined">null</a>.
+PASS String.prototype.anchor.length is 1
 PASS successfullyParsed is true
 
 TEST COMPLETE