src/vs/editor/contrib/multicursor/multicursor.ts/MultiCursorSession/selectAll
class MultiCursorSession:	public selectAll(): FindMatch[] {
		if (!this._editor.hasModel()) {
			return [];
		}

		this.findController.highlightFindOptions();

		return this._editor.getModel().findMatches(this.searchText, true, false, this.matchCase, this.wholeWord ? this._editor.getOption(EditorOption.wordSeparators) : null, false, Constants.MAX_SAFE_SMALL_INTEGER);
	}