}
		}
		// If there is exactly one result type,
		// associate the function with that type.
		if numResultTypes == 1 {
			typ.funcs.set(fun, r.mode&PreserveAST != 0)
			return
		}
	}

	// just an ordinary function
	r.funcs.set(fun, r.mode&PreserveAST != 0)
}

// lookupTypeParam searches for type parameters named name within the tparams
// field list, returning the relevant identifier if found, or nil if not.