Introduce initial version of FIR Java type enhancement

Java type enhancement is performed by a special scope kind
Java FIR dump was added for multiplatform tests to look at enhancements
Overrides, J2K mapping, special cases does not work yet

Related to KT-29937

idea/testData/fir/multiModule/overrideWithJava/extraDump.java.txt

@@ -0,0 +1,6 @@
+public open class A : R|java/lang/Object| {
+    public open operator function foo(): R|ft<A, A?>|!
+
+    public open operator function bar(): R|ft<A, A?>|!
+
+}