Fix dropModule logic

Author: odersky

compiler/src/dotty/tools/backend/jvm/DottyBackendInterface.scala

@@ -557,7 +557,7 @@ class DottyBackendInterface(outputDirectory: AbstractFile, val superCallsMap: Ma
     def fullName: String = sym.showFullName
     def simpleName: Name = sym.name
     def javaSimpleName: Name = toDenot(sym).name // addModuleSuffix(simpleName.dropLocal)
-    def javaBinaryName: Name = javaClassName.replace('.', '/').toTermName // TODO: can we make this a string? addModuleSuffix(fullNameInternal('/'))
+    def javaBinaryName: Name = javaClassName.replace('.', '/').toTypeName // TODO: can we make this a string? addModuleSuffix(fullNameInternal('/'))
     def javaClassName: String = toDenot(sym).fullName.toString// addModuleSuffix(fullNameInternal('.')).toString
     def name: Name = sym.name
     def rawname: Name = {

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

@@ -111,8 +111,8 @@ object NameOps {
      *  method needs to work on mangled as well as unmangled names because
      *  it is also called from the backend.
      */
-    def stripModuleClassSuffix: Name = name match {
-      case name: SimpleTermName if name.endsWith("$") =>
+    def stripModuleClassSuffix: Name = name.toTermName match {
+      case n: SimpleTermName if n.endsWith("$") =>
         name.unmangleClassName.exclude(ModuleClassName)
       case _ =>
         name.exclude(ModuleClassName)