Not marking enum entries as unused.

idea/src/org/jetbrains/kotlin/idea/inspections/UnusedSymbolInspection.kt

@@ -43,6 +43,7 @@ import com.intellij.psi.search.PsiSearchHelper
 import com.intellij.psi.search.PsiSearchHelper.SearchCostResult.*
 import org.jetbrains.kotlin.idea.search.usagesSearch.getOperationSymbolsToSearch
 import org.jetbrains.kotlin.idea.search.usagesSearch.INVOKE_OPERATION_NAME
+import org.jetbrains.kotlin.psi.JetEnumEntry
 
 public class UnusedSymbolInspection : AbstractKotlinInspection() {
     private val javaInspection = UnusedDeclarationInspection()
@@ -54,6 +55,8 @@ public class UnusedSymbolInspection : AbstractKotlinInspection() {
             override fun visitClass(klass: JetClass) {
                 if (klass.getName() == null) return
 
+                if (klass is JetEnumEntry) return
+
                 if (isEntryPoint(klass)) return
                 if (hasNonTrivialUsages(klass)) return
                 if (classHasTextUsages(klass)) return

idea/testData/inspections/unusedSymbol/class/enumEntries.kt

@@ -0,0 +1,7 @@
+enum class MyEnum {
+    A B C
+}
+
+fun main(args: Array<String>) {
+    MyEnum.values()
+}