// TODO(rfindley) should resolve all identifiers in x.
				list := []ast.Expr{x}
				if p.atComma("type argument list", token.RBRACK) {
					p.exprLev++
					p.next()
					for p.tok != token.RBRACK && p.tok != token.EOF {
						list = append(list, p.parseType())
						if !p.atComma("type argument list", token.RBRACK) {
							break
						}
						p.next()
					}
					p.exprLev--