Get rid of LoadJavaDescriptorsTest.

Implement the same test via existing LoadJavaDescriptorsTest.
Move test data.

compiler/testData/loadJavaDescriptors/inner.java

@@ -1,5 +1,6 @@
+package test;
 
-class A implements B.C {
+public class inner implements B.C {
 }
 
 class B {

compiler/testData/loadJavaDescriptors/inner.txt

@@ -0,0 +1,5 @@
+namespace test
+
+public open class test.inner : test.B.C {
+    public final /*constructor*/ fun <init>(): test.inner
+}

compiler/testData/loadJavaDescriptors/staticFinal/expected.txt

@@ -0,0 +1,3 @@
+namespace test
+
+public final val foo: jet.String

compiler/testData/loadJavaDescriptors/staticFinal/test.java

@@ -1,4 +1,3 @@
-
-class StaticFinal {
+public class test {
     public static final String foo = "aaa";
 }