bug#65470: 29.1.50; js-ts-mode: regex pattern can cause incorrect parenthesis matching

[BTuin]

With the mode js-ts-mode, matching tokens (such as '()', '[]') can be
incorrectly paired by `show-paren-mode`. This is trivially reproducible
with this simple example:

(/foobar)/)

The first parenthesis is matched with the second one, which is inside a
regular expression pattern (between slashes), and the last one is not
paired.

The behavior should be the same as for string, the content of the regex
pattern should have no influence on the structure of the code. The first
parenthesis should match with the third one. Here, the first parenthesis
is matched with the last one:

("foobar)")

js-mode behaves correctly in both cases.



In GNU Emacs 29.1.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version
 3.24.38, cairo version 1.17.8) of 2023-07-30 built on inspiron-5567
Repository revision: 0002d4f31666719c5e972ca65efffc70750db613
Repository branch: makepkg
Windowing system distributor 'The X.Org Foundation', version 11.0.12302000
System Description: Arch Linux

Configured using:
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