Use kotlin specific OOCB tracker for light classes inner cache

ClassInnerStuffCache from the platform caches everything with platform
OUT_OF_CODE_BLOCK tracker.

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/trackers/KotlinCodeBlockModificationListener.kt

@@ -86,6 +86,8 @@ class KotlinCodeBlockModificationListener(
                 val changeSet = event.getChangeSet(treeAspect) as TreeChangeEvent? ?: return
                 val ktFile = changeSet.rootElement.psi.containingFile as? KtFile ?: return
 
+                incFileModificationCount(ktFile)
+
                 val changedElements = changeSet.changedElements
                 // When a code fragment is reparsed, Intellij doesn't do an AST diff and considers the entire
                 // contents to be replaced, which is represented in a POM event as an empty list of changed elements
@@ -157,6 +159,12 @@ class KotlinCodeBlockModificationListener(
             file.putUserData(FILE_OUT_OF_BLOCK_MODIFICATION_COUNT, count + 1)
         }
 
+        private fun incFileModificationCount(file: KtFile) {
+            val tracker = file.getUserData(PER_FILE_MODIFICATION_TRACKER)
+                ?: file.putUserDataIfAbsent(PER_FILE_MODIFICATION_TRACKER, SimpleModificationTracker())
+            tracker.incModificationCount()
+        }
+
         fun getInsideCodeBlockModificationScope(element: PsiElement): KtElement? {
             val lambda = element.getTopmostParentOfType<KtLambdaExpression>()
             if (lambda is KtLambdaExpression) {
@@ -216,6 +224,11 @@ class KotlinCodeBlockModificationListener(
     }
 }
 
+private val PER_FILE_MODIFICATION_TRACKER = Key<SimpleModificationTracker>("FILE_OUT_OF_BLOCK_MODIFICATION_COUNT")
+
+val KtFile.perFileModificationTracker: ModificationTracker
+    get() = putUserDataIfAbsent(PER_FILE_MODIFICATION_TRACKER, SimpleModificationTracker())
+
 private val FILE_OUT_OF_BLOCK_MODIFICATION_COUNT = Key<Long>("FILE_OUT_OF_BLOCK_MODIFICATION_COUNT")
 
 val KtFile.outOfBlockModificationCount: Long

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/trackers/KotlinIDEModificationTrackerService.kt

@@ -9,11 +9,16 @@ import com.intellij.openapi.project.Project
 import com.intellij.openapi.util.ModificationTracker
 import com.intellij.psi.util.PsiModificationTracker
 import org.jetbrains.kotlin.analyzer.KotlinModificationTrackerService
+import org.jetbrains.kotlin.psi.KtFile
 
 class KotlinIDEModificationTrackerService(project: Project, psiModificationTracker: PsiModificationTracker) :
     KotlinModificationTrackerService() {
 
     override val modificationTracker: ModificationTracker = psiModificationTracker
+
     override val outOfBlockModificationTracker: ModificationTracker =
         KotlinCodeBlockModificationListener.getInstance(project).kotlinOutOfCodeBlockTracker
+
+    override fun fileModificationTracker(file: KtFile): ModificationTracker =
+        file.perFileModificationTracker
 }