Linus Groh 60064e2049 LibJS: Make invalid RegExp flags a SyntaxError at parse time ...

This patch changes the validation of RegExp flags (checking for
invalid and duplicate values) from a SyntaxError at runtime to a
SyntaxError at parse time - it's not something that's supposed to be
catchable.
As a nice side effect, this simplifies the RegExpObject constructor a
bit, as it can no longer throw an exception and doesn't have to validate
the flags itself.

2021-05-10 12:01:38 +01:00

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