Push java inner class privateWithin setting

[Cherry-picked 14e46e8]

Author: dwijnand

compiler/src/dotty/tools/dotc/core/SymbolLoaders.scala

@@ -51,19 +51,23 @@ object SymbolLoaders {
    */
   def enterClass(
       owner: Symbol, name: PreName, completer: SymbolLoader,
-      flags: FlagSet = EmptyFlags, scope: Scope = EmptyScope)(using Context): Symbol = {
-    val cls = newClassSymbol(owner, name.toTypeName.unmangleClassName.decode, flags, completer, compUnitInfo = completer.compilationUnitInfo)
+      flags: FlagSet = EmptyFlags, scope: Scope = EmptyScope, privateWithin: Symbol = NoSymbol,
+  )(using Context): Symbol = {
+    val cls = newClassSymbol(owner, name.toTypeName.unmangleClassName.decode, flags, completer, privateWithin, compUnitInfo = completer.compilationUnitInfo)
     enterNew(owner, cls, completer, scope)
   }
 
   /** Enter module with given `name` into scope of `owner`.
    */
   def enterModule(
       owner: Symbol, name: PreName, completer: SymbolLoader,
-      modFlags: FlagSet = EmptyFlags, clsFlags: FlagSet = EmptyFlags, scope: Scope = EmptyScope)(using Context): Symbol = {
+      modFlags: FlagSet = EmptyFlags, clsFlags: FlagSet = EmptyFlags,
+      scope: Scope = EmptyScope, privateWithin: Symbol = NoSymbol,
+  )(using Context): Symbol = {
     val module = newModuleSymbol(
       owner, name.toTermName.decode, modFlags, clsFlags,
       (module, _) => completer.proxy.withDecls(newScope).withSourceModule(module),
+      privateWithin,
       compUnitInfo = completer.compilationUnitInfo)
     enterNew(owner, module, completer, scope)
     enterNew(owner, module.moduleClass, completer, scope)
@@ -103,14 +107,16 @@ object SymbolLoaders {
    */
   def enterClassAndModule(
       owner: Symbol, name: PreName, completer: SymbolLoader,
-      flags: FlagSet = EmptyFlags, scope: Scope = EmptyScope)(using Context): (Symbol, Symbol) = {
-    val clazz = enterClass(owner, name, completer, flags, scope)
+      flags: FlagSet = EmptyFlags, scope: Scope = EmptyScope, privateWithin: Symbol = NoSymbol,
+  )(using Context): Unit = {
+    val clazz = enterClass(owner, name, completer, flags, scope, privateWithin)
     val module = enterModule(
       owner, name, completer,
       modFlags = flags.toTermFlags & RetainedModuleValFlags,
       clsFlags = flags.toTypeFlags & RetainedModuleClassFlags,
-      scope = scope)
-    (clazz, module)
+      scope = scope,
+      privateWithin = privateWithin,
+    )
   }
 
   /** Enter all toplevel classes and objects in file `src` into package `owner`, provided

compiler/src/dotty/tools/dotc/core/classfile/ClassfileParser.scala

@@ -1059,17 +1059,14 @@ class ClassfileParser(
    */
   private def enterOwnInnerClasses()(using Context, DataReader): Unit = {
     def enterClassAndModule(entry: InnerClassEntry, file: AbstractFile, jflags: Int) =
-      val (cls, mod) = SymbolLoaders.enterClassAndModule(
-          getOwner(jflags),
+      SymbolLoaders.enterClassAndModule(
+        getOwner(jflags),
         entry.originalName,
-          new ClassfileLoader(file),
-          classTranslation.flags(jflags),
-          getScope(jflags))
-
-      val privateWithin = getPrivateWithin(jflags)
-      cls.setPrivateWithin(privateWithin)
-      mod.setPrivateWithin(privateWithin)
-      mod.sourceModule.setPrivateWithin(privateWithin)
+        new ClassfileLoader(file),
+        classTranslation.flags(jflags),
+        getScope(jflags),
+        getPrivateWithin(jflags),
+      )
 
     for entry <- innerClasses.valuesIterator do
       // create a new class member for immediate inner classes