We could improve the dumped strings for types that involve value classes:

TypeInstPtr/TypeInstKlassPtr:
- Print a dedicated string to inform that a TypeInstPtr/TypeInstKlassPtr is a value class
- Print additional non-default inline type properties:
  - "flat_in_array" (default: no): Print if maybe or yes

TypeAryPtr/TypeAryKlassPtr:
- Print a dedicated string that a TypeAry/TypeAryKlass contains value class elements.
- Print additional non-default inline type properties:
  - "flat: (default: no): Print if maybe or yes
  - "null-free" (default: no): Print if yes