const go/types._InvalidClose

3 uses

	go/types (current package)
		builtins.go#L241: 				check.invalidOp(x, _InvalidClose, "cannot close non-channel %s", x)
		builtins.go#L245: 				check.invalidOp(x, _InvalidClose, "cannot close receive-only channel %s", x)
		errorcodes.go#L762: 	_InvalidClose