Part of the improve error messages initiative.

Based on a resource of JSON.parse() errors found at
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/JSON_bad_parse

Previously JSON.parse(NaN) would output:
SyntaxError: Unexpected token N in JSON at position 0
Now the output is:
SyntaxError: "NaN" is not valid JSON

Previously JSON.parse("{a:1}") would output:
SyntaxError: Unexpected token a in JSON at position 1
Now the output is:
SyntaxError: Expected property name or '}' in JSON at position 1

Bug: v8:6551
Change-Id: Ic9fad1fdbd295e1302805b81e6603fc526121960
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3513684Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Issack John <issackjohn@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#80567}