`Xprint` doesn't show literal types correctly

[hamzaremmal]

Compiler version

5176f9f

Minimized code

Printing the tree with -Xprint:parser returns code that is not valid scala 3 code

inline val _: true = true   // boolean literal
inline val _: "abc" = "abc" // string literal
inline val _: 'c' = 'c'     // character literal
inline val _: 1.2f = 1.2f   // floating point literal
inline val _: 1.2d = 1.2d   // double number literal

Output

[[syntax trees at end of                    parser]] // playground.scala
package <empty> {
  inline val _: true.type = true
  inline val _: "abc".type = "abc"
  inline val _: 'c'.type = 'c'
  inline val _: 1.2f.type = 1.2f
  inline val _: 1.2d.type = 1.2d
}

Expectation

[[syntax trees at end of                    parser]] // playground.scala
package <empty> {
  inline val _: true = true
  inline val _: "abc" = "abc"
  inline val _: 'c' = 'c'
  inline val _: 1.2f = 1.2f
  inline val _: 1.2d = 1.2d
}

[som-snytt]

-Vprint. (-Xprint is an alias for backward compatibility.)

Another anomaly, if it is one, is that literals are printed with color under -Yplain-printer.

//> using options -Vprint:parser -Yplain-printer
@main def test() = println:
  "hello, world!"

-color:never is respected, but should it be necessary when printing plainly?