Test data split between compiledJava tests and compiledKotlin tests

Basically, this commit splits test data from the from java-txt-kt to two pairs java-txt and kt-txt.
This commit leads to some duplication in test data.
This is temporary: in the platform types branch the test data for LoadJava tests will be changed dramatically, so duplication will go away

compiler/testData/loadJava/compiledJava/InnerClassesInGeneric.java

@@ -0,0 +1,14 @@
+package test;
+
+import java.lang.UnsupportedOperationException;
+
+public class InnerClassesInGeneric<P, Q> {
+    public class Inner {
+    }
+    
+    public class Inner2 extends Inner {
+        public java.util.Iterator<P> iterator() {
+            throw new UnsupportedOperationException();
+        }
+    }
+}