fix(#19806): wrong tasty of scala module class reference

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
```

Author: i10416

compiler/src/dotty/tools/dotc/typer/Typer.scala

@@ -688,7 +688,11 @@ class Typer(@constructorOnly nestingLevel: Int = 0) extends Namer
       report.error(StableIdentPattern(tree, pt), tree.srcPos)
 
   def typedSelect(tree0: untpd.Select, pt: Type, qual: Tree)(using Context): Tree =
-    val selName = tree0.name
+    val selName =
+      if ctx.isJava && tree0.name.isTypeName && tree0.name.endsWith(StdNames.str.MODULE_SUFFIX) then
+        tree0.name.stripModuleClassSuffix.moduleClassName
+      else
+        tree0.name
     val tree = cpy.Select(tree0)(qual, selName)
     val superAccess = qual.isInstanceOf[Super]
     val rawType = selectionType(tree, qual)