feat(icheck-ts): improve circular import reporting

[hi-ogawa]

Current, cyclic deps reporting includes many duplicate "import edge".
Also, the printed order is pretty random, some sort of sensible sorting is wished.
I worried that checking all edges in all cycles might be too expensive (probably O(n^2)), but maybe still worth it.

js-utils/packages/icheck-ts/src/cli.ts

Lines 86 to 108 in 0cbd80f

	// group/sort by initial cyclic edge
	const edgeWithKeys = circularResult.backEdges.map((e) => ({
	edge: e,
	key: JSON.stringify([e[0], e[1].source.name]),
	}));
	const groups = groupBy(
	sortBy(edgeWithKeys, (e) => e.key),
	(e) => e.key
	);
	const uniqEdges = [...groups.values()].map((group) => group[0].edge);
	for (const edge of uniqEdges) {
	const formatted = formatCircularImportError(
	edge,
	circularResult.parentMap
	);
	formatted.lines.forEach((line, i) => {
	const prefix = i > 0 ? " ".repeat(i - 1) + " -> " : "";
	console.log(prefix + line);
	});
	}
	process.exitCode = 1;
	}
	}