Text Encoding: Convert fast/encoding tests to testharness.js

third_party/WebKit/LayoutTests/fast/encoding/char-decoding-truncated-expected.txt

-CONSOLE WARNING: line 4: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
-Test encoding behavior for truncated sequences
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-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
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-PASS decode('utf-8', '%E2%88%9A') is 'U+221A'
-PASS decode('utf-8', '%E2%88') is 'U+FFFD/U+FFFD'
-PASS decode('utf-8', '%E2') is 'U+FFFD'
-PASS decode('utf-16', '%69%D8%D6%DE') is 'U+D869/U+DED6'
-PASS decode('utf-16', '%69%D8%D6') is 'U+D869'
-PASS decode('utf-16', '%69%D8') is 'U+D869'
-PASS decode('utf-16', '%69') is ''
-PASS decode('utf-16be', '%D8%69%DE%D6') is 'U+D869/U+DED6'
-PASS decode('utf-16be', '%D8%69%DE') is 'U+D869'
-PASS decode('utf-16be', '%D8%69') is 'U+D869'
-PASS decode('utf-16be', '%D8') is ''
-PASS decode('gb2312', '%A3%A0') is 'U+3000'
-PASS decode('gb2312', '%A3') is 'U+FFFD'
-PASS decode('shift_jis', '%82%d0') is 'U+3072'
-PASS decode('shift_jis', '%82') is 'U+FFFD'
-PASS decode('windows-949', '%A2%E6') is 'U+20AC'
-PASS decode('windows-949', '%A2') is 'U+FFFD'
-PASS successfullyParsed is true
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-TEST COMPLETE
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