const internal/types/errors.InvalidConstType

3 uses

	internal/types/errors (current package)
		code_string.go#L26: 	_ = x[InvalidConstType-15]
		codes.go#L151: 	InvalidConstType

	go/types
		decl.go#L453: 				check.errorf(typ, InvalidConstType, "invalid constant type %s", t)