const go/types._UncalledBuiltin

4 uses

	go/types (current package)
		call.go#L539: 		check.errorf(e.Sel, _UncalledBuiltin, "cannot select on %s", x)
		errorcodes.go#L734: 	_UncalledBuiltin
		expr.go#L1754: 			code = _UncalledBuiltin
		stmt.go#L407: 			code = _UncalledBuiltin