Hot Exit: Very difficult to get out of a bad search/replace

[alexdima]

Testing #16544

• create a file generator.js

var fs = require('fs');

for (var i = 0; i < 200; i++) {
	fs.writeFileSync('consumer_'+i+'.ts', `
import {x} from './provider';

console.log(x);
`)
}

fs.writeFileSync('provider.ts', `
export var x = 'Hello world';
`)

• run node generator.js
• open the folder where you have generated these files
• do a search for x whole words, case sensitive, *.ts files only
• replace everything with y
• run the replace
• close VS Code
• open VS Code
• the files are restored and slowly dots are appearing next to the file names. (why slowly?)
• try to close all the files (via right click close all, or via the close all editors action in the explorer)

You get prompted for each and every one. This is a regression IMHO since in the stable version there is a single dialog that prompts me for all 200+ files:

[bpasero]

This is a duplicate of #8009 which is now becoming more important with the advent of hot exit being on by default.

[Tyriar]

The slow dirty indicator is being discussed in #16584, let's close this off as a duplicate of that and #8009.