src/vs/workbench/contrib/debug/browser/debugEditorContribution.ts/DebugEditorContribution/wordToLineNumbersMap
class DebugEditorContribution:	private get wordToLineNumbersMap(): Map<string, number[]> {
		if (!this._wordToLineNumbersMap) {
			this._wordToLineNumbersMap = getWordToLineNumbersMap(this.editor.getModel());
		}
		return this._wordToLineNumbersMap;
	}