Daniel Bertalan c21255da7f LibJS: Align NewPromiseCapability with spec changes ...

See https://github.com/tc39/ecma262/commit/874ecf9

After this refactoring, we now correctly handle non-function /
non-undefined objects being passed multiple times: instead of skipping
assignment to promiseCapability altogether and failing with a
NotAFunction error in the end; on the second time the executor closure
is called, we return GetCapabilitiesExecutorCalledMultipleTimes.

This fixes the 7 `capability-executor-called-twice.js` test262 tests.

2023-06-28 23:36:15 +01:00

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