[JPS] Fix incremental build after changing Java enum used in Kotlin when

EnumWhenTracker implemented for tracking changed java enum class items, that used in kotlin when expression.

#KT-47824 Fixed

compiler/fir/semantics/src/org/jetbrains/kotlin/fir/FirEnumWhenTrackerComponent.kt

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.fir
+
+import org.jetbrains.kotlin.fir.types.ConeKotlinType
+import org.jetbrains.kotlin.fir.types.classId
+
+abstract class FirEnumWhenTrackerComponent : FirSessionComponent {
+    abstract fun report(whenExpressionFilePath: String, enumClassFqName: String)
+}
+
+val FirSession.enumWhenTracker: FirEnumWhenTrackerComponent? by FirSession.nullableSessionComponentAccessor()
+
+fun FirEnumWhenTrackerComponent.reportEnumUsageInWhen(path: String?, subjectType: ConeKotlinType?) {
+    if (path == null || subjectType == null) return
+    val fqName = subjectType.classId?.asString()?.replace(".", "$")?.replace("/", ".") ?: return
+    this.report(path, fqName)
+}