const runtime.maxKeySize

3 uses

	runtime (current package)
		map.go#L77: 	maxKeySize  = 128
		map.go#L1283: 	if t.key.size > maxKeySize && (!t.indirectkey() || t.keysize != uint8(sys.PtrSize)) ||
		map.go#L1284: 		t.key.size <= maxKeySize && (t.indirectkey() || t.keysize != uint8(t.key.size)) {