K2 IC: fix classifiers lookups

in particular nested classifiers and companions.

#KTIJ-24833 fixed
#KTIJ-24830 fixed
#KT-55195 fixed

jps/jps-plugin/testData/incremental/pureKotlin/removeAndRestoreCompanion/fir-build.log

@@ -0,0 +1,33 @@
+================ Step #1 =================
+
+After chunkBuildStarted. Marked as dirty by Kotlin:
+  src/A.kt
+  src/useAbar.kt
+  src/useAfoo.kt
+Cleaning output files:
+  out/production/module/META-INF/module.kotlin_module
+  out/production/module/foo/A$Companion.class
+  out/production/module/foo/A.class
+  out/production/module/use/UseAbarKt.class
+  out/production/module/use/UseAfooKt.class
+End of files
+Compiling files:
+  src/A.kt
+  src/useAbar.kt
+  src/useAfoo.kt
+End of files
+Exit code: ABORT
+------------------------------------------
+COMPILATION FAILED
+Unresolved reference 'bar'.
+Unresolved reference 'foo'.
+
+================ Step #2 =================
+
+Compiling files:
+  src/A.kt
+  src/useAbar.kt
+  src/useAfoo.kt
+End of files
+Exit code: OK
+------------------------------------------