Javascript regex syntax highlighting fails for !/regex/.test

[qsniyg]

Issue Type: Bug

If parenthesis aren't added around /regex/.test(...), syntax highlighting for the regex fails (and occasionally it will break the syntax highlighting for code below it as well)

// regex syntax highlighting fails
if (!/[test]test/.test(test)) {
    console.log("test");
}

// regex syntax highlighting succeeds
if (!(/[test]test/.test(test))) {
    console.log("test");
}

VS Code version: Code - OSS 1.42.1 (c47d83b, 2020-02-17T09:32:31.598Z)
OS version: Linux x64 5.5.5-zen1-1-zen

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• Syntax highlight regex in find in file/s when regex is enabled (#42715)

[mjbvz]

Duplicate of microsoft/TypeScript-TmLanguage#806