dotty is not outputting MethodParameters to bytecode

[magnolia-k]

package example
class Person(name: String, `user.id`: String)

When the above code is compiled, MethodParameters is set in the bytecode in Scala2, but not in dotty (3.0.0-M3).

Scala 2.13.4

  public example.Person(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=3, args_size=3
         0: aload_0
         1: invokespecial #15                 // Method java/lang/Object."<init>":()V
         4: return
      LineNumberTable:
        line 3: 0
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            0       5     0  this   Lexample/Person;
            0       5     1  name   Ljava/lang/String;
            0       5     2 user$u002Eid   Ljava/lang/String;
    MethodParameters:
      Name                           Flags
      name                           final
      user.id                        final

dotty(3.0.0-M3)

  public example.Person(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=3, args_size=3
         0: aload_0
         1: invokespecial #10                 // Method java/lang/Object."<init>":()V
         4: return
      LineNumberTable:
        line 3: 0
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            0       5     0  this   Lexample/Person;
            0       5     1  name   Ljava/lang/String;
            0       5     2 user$u002Eid   Ljava/lang/String;

MethodParameters is not set in dotty's bytecode.

---

When setting parameters, it is necessary to be careful to set encoded parameters.

scala/scala#9435

[som-snytt]

now

  public example.Person(java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=3, args_size=3
         0: aload_0
         1: invokespecial #12                 // Method java/lang/Object."<init>":()V
         4: return
      LineNumberTable:
        line 3: 0
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            0       5     0  this   Lexample/Person;
            0       5     1  name   Ljava/lang/String;
            0       5     2 user$u002Eid   Ljava/lang/String;
    MethodParameters:
      Name                           Flags
      name                           final
      user$u002Eid                   final

I wonder if the unencoded name in scala 2 is worth rectifying.