FIR Java: map classes to make java type-parameters have correct bounds

Really, this commit implements early J2K mapping for all Java types.
It's questionable and probably wrong at least for super-types,
because, for example, we cannot resolve spliterator() in classes
derived from java.lang.Iterable

compiler/testData/loadJava/compiledJava/sam/adapters/AmbiguousAdapters.fir.txt

@@ -1,4 +1,4 @@
-public open class AmbiguousAdapters : R|java/lang/Object| {
+public open class AmbiguousAdapters : R|kotlin/Any| {
     public open operator fun foo(r: R|ft<java/lang/Runnable, java/lang/Runnable?>|!): R|kotlin/Unit|
 
     public open operator fun foo(c: R|ft<java/io/Closeable, java/io/Closeable?>|!): R|kotlin/Unit|