return
	}
	radix := s[1]
	if radix == 'b' || radix == 'B' {
		check.versionErrorf(lit, go1_13, "binary literal")
		return
	}
	if radix == 'o' || radix == 'O' {
		check.versionErrorf(lit, go1_13, "0o/0O-style octal literal")
		return
	}
	if lit.Kind != token.INT && (radix == 'x' || radix == 'X') {
		check.versionErrorf(lit, go1_13, "hexadecimal floating-point literal")
	}
}

		}
	case "0x":
		// possibly a hexadecimal float
		i := strings.LastIndexByte(x, 'P')
		if i == -1 {
			return lit // nothing to do
		}
		x = x[:i] + "p" + x[i+1:]
	case "0O":
		x = "0o" + x[2:]
	case "0o":
		return lit // nothing to do
	case "0B":
		x = "0b" + x[2:]
	case "0b":
		return lit // nothing to do
	}

		return
	}
	radix := s[1]
	if radix == 'b' || radix == 'B' {
		check.versionErrorf(lit, go1_13, "binary literal")
		return
	}
	if radix == 'o' || radix == 'O' {
		check.versionErrorf(lit, go1_13, "0o/0O-style octal literal")
		return
	}
	if lit.Kind != syntax.IntLit && (radix == 'x' || radix == 'X') {
		check.versionErrorf(lit, go1_13, "hexadecimal floating-point literal")
	}
}