Check if containing file is KtFile

EA-109460 - CCE: KtElementImplStub.getContainingKtFile

idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/navigation/SourceNavigationHelper.kt

@@ -1,17 +1,6 @@
 /*
- * Copyright 2010-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright 2000-2017 JetBrains s.r.o. 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.idea.decompiler.navigation
@@ -31,7 +20,9 @@ import gnu.trove.THashSet
 import org.jetbrains.annotations.TestOnly
 import org.jetbrains.kotlin.asJava.toLightClass
 import org.jetbrains.kotlin.descriptors.CallableDescriptor
-import org.jetbrains.kotlin.idea.caches.resolve.*
+import org.jetbrains.kotlin.idea.caches.resolve.getBinaryLibrariesModuleInfos
+import org.jetbrains.kotlin.idea.caches.resolve.getLibrarySourcesModuleInfos
+import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptorIfAny
 import org.jetbrains.kotlin.idea.decompiler.navigation.MemberMatching.*
 import org.jetbrains.kotlin.idea.stubindex.KotlinFullClassNameIndex
 import org.jetbrains.kotlin.idea.stubindex.KotlinTopLevelFunctionFqnNameIndex
@@ -275,7 +266,8 @@ object SourceNavigationHelper {
         when (navigationKind) {
             SourceNavigationHelper.NavigationKind.CLASS_FILES_TO_SOURCES -> if (!from.containingKtFile.isCompiled) return from
             SourceNavigationHelper.NavigationKind.SOURCES_TO_CLASS_FILES -> {
-                if (from.containingKtFile.isCompiled) return from
+                val file = from.containingFile
+                if (file is KtFile && file.isCompiled) return from
                 if (!ProjectRootsUtil.isInContent(from, false, true, false, true)) return from
                 if (KtPsiUtil.isLocal(from)) return from
             }