Extension breaks other extensions due to using Regexp shim

[j-fulbright]

After reviewing an error for a different extension, it was determined that the extension was broken due to TODO Tree.

From the other extension author:

gruntfuggly is using a package called [regexp-match-indices](https://www.npmjs.com/package/regexp-match-indices) which replaces the javascript RegExp object globally and causes unexpected behaviour in RegExp.exec().

Versionlens uses a RegExp with the flags /gd which are valid [RegExp flags](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Regular_expressions#regex_flags)
but the shim gruntfuggly uses doesn't support them....

its very bad that this extension replaces the RegExp object globally. 
This will potentially cause many problems in vscode.

This particular usage here:

todo-tree/src/highlights.js

Line 2 in a6f60e0

var execWithIndices = require( "regexp-match-indices" ).shim();

[sa2taka]

I'm also seeing.

[Release-Candidate]

It breaks my extension too: Release-Candidate/vscode-scheme-repl#20

The problem for me are the valid flagsdsu.

The stack-trace from "OUTPUT" of "Extension Host":

[error] SyntaxError: Invalid flags: dsu
	at k (/home/roland/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:114:74341)
	at Array.d (/home/roland/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:114:3580)
	at Object.parse (/home/roland/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:114:71938)
	at r.parse (/home/roland/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:1:12692)
	at Object.parse (/home/roland/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:114:415)
	at l (/home/roland/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:52:165)
	at Array.get [as indices] (/home/roland/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:52:2895)
	at Re (/home/roland/tmp/vscode-scheme-repl/out/extension.js:16:2643)
	at zr (/home/roland/tmp/vscode-scheme-repl/out/extension.js:16:210)
	at g (/home/roland/tmp/vscode-scheme-repl/out/extension.js:12:1237)
	at Y (/home/roland/tmp/vscode-scheme-repl/out/extension.js:16:2259)
	at vr (/home/roland/tmp/vscode-scheme-repl/out/extension.js:12:1338)
	at g (/home/roland/tmp/vscode-scheme-repl/out/extension.js:12:1070)
	at U (/home/roland/tmp/vscode-scheme-repl/out/extension.js:12:956)
	at Ne (/home/roland/tmp/vscode-scheme-repl/out/extension.js:25:918)
	at /home/roland/tmp/vscode-scheme-repl/out/extension.js:830:29871

[boltex]

Also happens for my extensions "LeoJS" https://github.com/boltex/leojs .

Specifically, I'm getting the "Invalid flags: dgm" error messages, which renders my extension somehow unresponsive!

[pedrohenrique-ql]

This also happens in my extension Regex Match, which uses the /d flag to get the match indexes.

Reported in pedrohenrique-ql/vscode-regex-match#95.

The error:

2024-09-11 20:05:50.222 [error] SyntaxError: Invalid flags: dg
    at k (/home/pedrohql/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:114:74341)
    at Array.d (/home/pedrohql/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:114:3580)
    at Object.parse (/home/pedrohql/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:114:71938)
    at Object.r.parse (/home/pedrohql/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:1:12692)
    at Object.parse (/home/pedrohql/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:114:415)
    at l (/home/pedrohql/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:52:165)
    at Array.get [as indices] (/home/pedrohql/.vscode/extensions/gruntfuggly.todo-tree-0.0.226/dist/extension.js:52:2895)
    at RegexTest.processMatch (/home/pedrohql/projects/regex-match/src/services/regex-match/RegexTest.ts:92:15)
    at RegexTest.test (/home/pedrohql/projects/regex-match/src/services/regex-match/RegexTest.ts:47:37)
    at /home/pedrohql/projects/regex-match/src/decorations/TextDecorationApplier.ts:19:72
    at Array.flatMap (<anonymous>)
    at Function.updateDecorations (/home/pedrohql/projects/regex-match/src/decorations/TextDecorationApplier.ts:19:39)
    at RegexMatchService.updateRegexTest (/home/pedrohql/projects/regex-match/src/services/regex-match/RegexMatchService.ts:79:27)
    at RegexMatchService.openRegexTestWindow (/home/pedrohql/projects/regex-match/src/services/regex-match/RegexMatchService.ts:74:10)
    at d.h (/usr/share/code/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:154:206473) regex-match.openRegexMatchWindow {"value":"pedrohenrique-ql.regex-match","_lower":"pedrohenrique-ql.regex-match"}

[AlfishSoftware]

This is also breaking my extension. Upstream issue: rbuckton/regexp-match-indices#15
Can you please fix with an update, @rbuckton? Last update was 5 years ago, so it should be fixed or deprecated.

Better yet, just not use the dependency, since the shim is no longer necessary, I assume?

It's absurd that this sort of thing can happen at all, you'd think extensions should run isolated from each other?
This goes to show how you should never mess with JS globals. If you want to polyfill something, use your own classes.

Is there any way to ensure I'm using vanilla RegEx/Array?