This commit makes the following diff to TASTy for i17255
files. The TASTy before this commit relied on the compiler (aka all TASTy clients)
intrinsically knowing how to resolve Module$ when the definition is actually Module[ModuleClass].

```sh
scalac tests/run/i17255/J.java tests/run/i17255/Module.scala -Yprint-tasty -Yjava-tasty
```

```diff
    90:         EMPTYCLAUSE
    91:         TERMREF 17 [Module]
    93:           SHAREDtype 12
    95:         ELIDED
    96:           SHAREDtype 91
    98:         STATIC
    99:       DEFDEF(12) 18 [module]
   102:         EMPTYCLAUSE
-  103:         SELECTtpt 19 [Module$]
+  103:         SELECTtpt 19 [Module[ModuleClass]]
   105:           SHAREDtype 3
   107:         ELIDED
   108:           TYPEREF 17 [Module]
   110:             SHAREDtype 3
   112:         STATIC
```