fix: when parser error, infinite loop in skipStatement (#1999)

[HerrCai0907]

Fixes #1999, where in skipBlock(tn: Tokenizer): void, the condition of Token.TEMPLATELITERAL is missing and tn.next() also don't go to the next token. It causes infinite loop.

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[MaxGraey]

Could you add tests for `p${1}`, `${2}n` please?

[HerrCai0907]

Can this PR be merged? I have add some testcase for it.

[dcodeIO]

I have been hesitant to merge because of a feeling that the { and } handling may modify depth in unexpected ways, potentially leading to a wall of red. Do the changes account for every possible { or } also inside of strings, or are there some that may still be missed? I think if all are covered then it should be fine.

[dcodeIO]

Thanks :)