Important JavaDescriptorResolver refactoring

This patch implement own member filling with supertype scope. Before this patch JDR relied on
Idea hierarchy resolver.

This patch does two things:

* copies FunctionDescriptors from supertype scopes
* rewrites containingDeclaration similary to how it is done in previous patch

Patch is incomplete, in particular properties are not yet initialized properly, code needs cleanup,
however the most important part of refactoring is done, and tests pass.

testlib/test/regressions/kt1202.kt

@@ -2,6 +2,7 @@ package testeval
 
 import java.util.*
 import junit.framework.TestCase.*
+import junit.framework.Assert.* // TODO unnecessary import
 
 trait Expression
 class Num(val value : Int) : Expression