* Move decimalToHexString into harness instead of duplicating it in multiple files
* Optimize decimalToHexString and support numbers greater than 65535
* Replace alternative decimalToHexString function with include for decimalToHexString.js
* Add decimalToHex2String to return the string representation of a two-digit hex-number
* Replace decimalToHex2String with decimalToPercentHexString to return the percent hex-encoded string of a two-digit hex-number
* Replace two String.fromCharCode calls with a single call
* Further reduce string concatentations in decodeURI[Component] tests
* Remove unnecessary Test262Error error handling in catch-clauses
* Remove try/catch wrappings in decodeURI/encodeURI tests
The global isNaN is not precise at all, and Number.isNaN is an ES6 feature that makes it preferrable to use assert's sameValue for NaN values, as it handles it internally using the comparison.
This function is equivalent to `$ERROR` (which is automatically included
in test environments). Remove the harness file that defines the
function, remove references to the file from test `includes` lists, and
update scripts to instead invoke the `$ERROR` function.
- Remove no longer needed noStrict flags.
- Change tests to use propertyHelper.js for strict mode compatibility.
- Add tests for return value of `delete` operator, e.g. `delete Array.prototype === false`.
- Add non-writable tests for global NaN property.
- Split some tests to run in strict mode.
- Change tests with global `var length` declaration to use a different variable name for browser environments.
- Merge duplicated tests symbol-data-property-configurable-non-strict and symbol-data-property-configurable-strict.
- Merge duplicated tests symbol-data-property-writable-non-strict and symbol-data-property-writable-strict.
- (And a small change in propertyHelper to reduce code duplication in function call.)