+whitespace

Thanks to Caitin Potter for highlighting this test case.

* Fix bad references on tests for BigInt TypedArrays

* Remove bad conversions for BigInt TypedArray

* Cleanup the BigInt TypedArray harness file

Remove non used code (testBigIntTypedArrayConversions)

Move the constructors list to inside the exposed function, this prevents early implementations to fail before the function is called.

* Fix bad references in TypedArrays.of (BigInt)

* Remove BigInt tests from typedarray harness test

* Use BigInt for BigInt typedArrays

* Apply last fixings on BigInt TypedArray tests

* Apply fixes to last revision from @anba

Additional tests for QuantifiableAssertion

- Tests that lookahead and lookbehind are not extended to
  QuantifiableAssertion, as in https://github.com/tc39/ecma262/pull/1102
- Additional tests verifying some more combinations of cases for
  QuantifiableAssertion being invalid in Unicode mode.

Based on the tests in https://chromium-review.googlesource.com/c/v8/v8/+/926102

These tests pass on V8 (if the throw for early errors is removed to
work around a V8 issue where RegExps don't have early errors).

BigInt+TypedArray tests, splitted

- optimize file names
- BigInt folder for TAs.from and of
- copy tests preparing for bigint
- copy ta prototype methods for bigint
- Use an exclusive harness for bigint typedarrays
- add features
- use proper harness
- use preper harness
- Restore original tests for TypedArrays
- final fixes
- fix includes

- add @jakobkummerow's changes
- remove EOL whitespace
- use 'Array.isArray' instead of 'instanceof Array'
- check for BigInt type in toLocaleString tests
- specify TypedArray constructor list for non-BigInt tests
- update TypedArray harness test for BigInt
- add a missing type coercion
- disable more tests for Big(U)Int64Array
- check for BigInt before using BigInt TypedArray constructors