JPS: Fix JvmMultifileClass processing for IR backend

#KT-44644 Fixed

jps-plugin/testData/incremental/withJava/other/multifileDependantUsage/build.log

@@ -0,0 +1,25 @@
+================ Step #1 =================
+
+Marked as dirty by Kotlin:
+  src/partB.kt
+  src/usagePartB.kt
+Cleaning output files:
+  out/production/module/META-INF/module.kotlin_module
+  out/production/module/OuterClass$InnerClass.class
+  out/production/module/OuterClass.class
+  out/production/module/UsagePartBKt.class
+  out/production/module/Utils.class
+  out/production/module/Utils__PartBKt.class
+End of files
+Cleaning output files:
+  out/production/module/Utils__PartAKt.class
+End of files
+Compiling files:
+  src/partA.kt
+  src/partB.kt
+  src/usagePartB.kt
+End of files
+Exit code: ABORT
+------------------------------------------
+COMPILATION FAILED
+Unresolved reference: OuterClass