src/vs/workbench/contrib/debug/browser/debugService.ts/DebugService/renameWatchExpression
class DebugService:	renameWatchExpression(id: string, newName: string): void {
		this.model.renameWatchExpression(id, newName);
		this.debugStorage.storeWatchExpressions(this.model.getWatchExpressions());
	}