JavaDescriptorResolver refactoring

* kill JavaDescriptorResolver.typeParameterDescriptorCache
* use ClassOrNamespaceDescriptor instead of DeclarationDescriptor

Code is a bit ugly now, but simpler than before.

compiler/testData/readJavaBinaryClass/MethosWithPRefTP.kt

@@ -0,0 +1,5 @@
+package test
+
+final class MethosWithPRefTP() {
+    fun <erased P> f(p0: P) = #()
+}