FIR: introduce type resolvers #KT-24019 Fixed

compiler/testData/fir/resolve/F.kt

@@ -0,0 +1,4 @@
+open class A
+
+
+class B : A

compiler/testData/fir/resolve/F.txt

@@ -0,0 +1,5 @@
+FILE: F.kt
+    unknown open class A() {
+    }
+    unknown final class B() : R/<root>.A/ {
+    }