compareChunks(chunkA, chunkB) {
		const cgcA = this._getChunkGraphChunk(chunkA);
		const cgcB = this._getChunkGraphChunk(chunkB);
		if (cgcA.modules.size > cgcB.modules.size) return -1;
		if (cgcA.modules.size < cgcB.modules.size) return 1;
		cgcA.modules.sortWith(compareModulesByIdentifier);
		cgcB.modules.sortWith(compareModulesByIdentifier);
		return compareModuleIterables(cgcA.modules, cgcB.modules);
	}
@param {Chunk} chunkA first chunk
@param {Chunk} chunkB second chunk
@returns {-1|0|1} this is a comparator function like sort and returns -1, 0, or 1 based on sort order