[FIR Test] Migrate AbstractFirLoadCompiledKotlin to new test infrastructure

Also introduce two different modes for those tests:
- load metadata compiled with K1
- load metadata compiled with K2

compiler/testData/loadJava/compiledKotlin/nestedClasses/membersReferenceOuterTP.fir.txt

@@ -0,0 +1,19 @@
+public final class MembersReferenceOuterTP<P> : R|kotlin/Any| {
+    public constructor<P>(): R|test/MembersReferenceOuterTP<P>|
+
+    public final inner class Inner<P> : R|kotlin/Any| {
+        public final fun <Q : R|P|> f(): R|kotlin/Unit|
+
+        public final fun g(p: R|P|): R|P|
+
+        public final val v: R|P|
+            public get(): R|P|
+
+        public final val <Q : R|P|> R|Q|.w: R|Q|
+            public get(): R|Q|
+
+        public test/MembersReferenceOuterTP<P>.constructor(): R|test/MembersReferenceOuterTP.Inner<P>|
+
+    }
+
+}