removing unnneded InstructionAdapterEx

stdlib/src/jet/Iterable$$Impl.java

@@ -1,4 +0,0 @@
-package jet;
-
-public abstract class Iterable$$Impl implements Iterable {
-}

stdlib/src/jet/Iterator$$Impl.java

@@ -1,4 +0,0 @@
-package jet;
-
-public abstract class Iterator$$Impl implements Iterator {
-}

stdlib/src/jet/typeinfo/TypeInfo.java

@@ -85,7 +85,7 @@ public abstract class TypeInfo<T> implements JetObject {
 
     public final Object getClassObject() {
         try {
-            final Class implClass = theClass.getClassLoader().loadClass(theClass.getCanonicalName() + "$$Impl");
+            final Class implClass = theClass.getClassLoader().loadClass(theClass.getCanonicalName());
             final Field classobj = implClass.getField("$classobj");
             return classobj.get(null);
         } catch (Exception e) {