src/vs/workbench/contrib/debug/common/replModel.ts/areSourcesEqual
function areSourcesEqual(first: IReplElementSource | undefined, second: IReplElementSource | undefined): boolean {
	if (!first && !second) {
		return true;
	}
	if (first && second) {
		return first.column === second.column && first.lineNumber === second.lineNumber && first.source.uri.toString() === second.source.uri.toString();
	}

	return false;
}