st.advance(1)
	}
	// We don't currently print out the discriminator, so we don't
	// save it.
	return a
}

// closureTypeName parses:
//
//	<closure-type-name> ::= Ul <lambda-sig> E [ <nonnegative number> ] _
//	<lambda-sig> ::= <parameter type>+
func (st *state) closureTypeName() AST {
	st.checkChar('U')
	st.checkChar('l')

	oldLambdaTemplateLevel := st.lambdaTemplateLevel