[Bug] debugger; statement in diffAlgorithm.ts

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

https://microsoft.github.io/monaco-editor/playground.html?source=v0.46.0#XQAAAALqAQAAAAAAAABBqQkHQ5NjdMjwa-jY7SIQ9S7DNlzs5W-mwj0fe1ZCDRFc9ws9XQE0SJE1jc2VKxhaLFIw9vEWSxW3yscw0NV5ZhsAFQjfi1GSTeRDChAtr8RC8jhkfedYn4TxJcJIcii5J3w75DBaWUzZY7JhpoXvJUR_WOC8PUjTJJHARZq1Yvwknih9CKoN8cX52K0IsNBtLsWAS-pNClj345Kw7Obf-TJkCoxNGAe1feBwKEM_zEfs2hqXYosGzEcrts7GBx6xmX5kC3DSKFaUyWT-8ggK3bn1Kgwq8fyVflZBnzqHH7a6CfTk7xzp5I2WObspjo9StazRuvhh6xiLzjVYOH9FGjjODUBwuGK_zD7P_f2Paw

Monaco Editor Playground Code

const originalModel = monaco.editor.createModel(
	'foo bar \n'.repeat(10000),
	"text/plain"
);
const modifiedModel = monaco.editor.createModel(
	'foo foo bar \n'.repeat(10000),
	"text/plain"
);

const diffEditor = monaco.editor.createDiffEditor(
	document.getElementById("container"),
	{
		originalEditable: true,
		automaticLayout: true,
	}
);
diffEditor.setModel({
	original: originalModel,
	modified: modifiedModel,
});

Reproduction Steps

1. Open dev tools
2. Load playground with large diff
3. Will eventually break at debugger statement

Actual (Problematic) Behavior

debugger; :

Expected Behavior

No debugger;

Additional Context

Just upgraded monaco from a pretty old version and now keep getting stuck in the debugger statement while navigating in my app (I work with a lot of large diffs).

Bisected to https://github.com/microsoft/vscode/compare/949c8073e29554a897d764dcd05930bcb626e377...061041479c3fc2ad4d813bc87bc62d2b0c95d0b8

https://github.com/microsoft/vscode/blob/05bf957b312e16532c7669004df043e7c580af1d/src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/diffAlgorithm.ts#L188

Start at src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/diffAlgorithm.ts around line 188, then reproduce the issue with the linked Monaco playground and its large diff. Confirm that navigating or loading the diff no longer pauses at a debugger statement, while the diff still works as expected.