More proper fix for KT-8137/EA-69470: avoiding failed assertion when searching usages of parameter of local class constructor

KT-8137 AE at JetSourceNavigationHelper.convertNamedClassOrObject() on function local class with several constructor parameters

 #KT-8137 fixed
 #EA-69470 fixed

compiler/frontend/src/org/jetbrains/kotlin/psi/JetConstructor.kt

@@ -19,6 +19,7 @@ package org.jetbrains.kotlin.psi
 import com.intellij.lang.ASTNode
 import com.intellij.navigation.ItemPresentationProviders
 import com.intellij.psi.PsiElement
+import com.intellij.psi.search.SearchScope
 import com.intellij.util.IncorrectOperationException
 import org.jetbrains.kotlin.lexer.JetTokens
 import org.jetbrains.kotlin.name.Name
@@ -89,4 +90,8 @@ public abstract class JetConstructor<T : JetConstructor<T>> : JetDeclarationStub
                ?: getValueParameterList()?.getTextOffset()
                ?: super<JetDeclarationStub>.getTextOffset()
     }
+
+    override fun getUseScope(): SearchScope {
+        return getContainingClassOrObject().getUseScope()
+    }
 }

compiler/frontend/src/org/jetbrains/kotlin/psi/JetParameter.java

@@ -182,7 +182,7 @@ public class JetParameter extends JetNamedDeclarationStub<KotlinParameterStub> i
         PsiElement parent = getParent();
         if (parent != null) {
             PsiElement grandparent = parent.getParent();
-            if (grandparent instanceof JetNamedFunction) {
+            if (grandparent instanceof JetFunction && !(grandparent instanceof JetFunctionLiteral)) {
                 return grandparent.getUseScope();
             }
         }

compiler/frontend/src/org/jetbrains/kotlin/psi/JetPsiUtil.java

@@ -775,9 +775,9 @@ public class JetPsiUtil {
         else if (declaration instanceof JetParameter) {
             PsiElement parent = declaration.getParent();
 
-            // val/var parameter of primary constructor should not be considered as local
+            // val/var parameter of primary constructor should be considered as local according to containing class
             if (((JetParameter) declaration).hasValOrVar() && parent != null && parent.getParent() instanceof JetPrimaryConstructor) {
-                return null;
+                return getEnclosingElementForLocalDeclaration(((JetPrimaryConstructor) parent.getParent()).getContainingClassOrObject(), skipParameters);
             }
 
             else if (skipParameters && parent != null && parent.getParent() instanceof JetNamedFunction) {

idea/testData/findUsages/kotlin/findPropertyUsages/kotlinPrivatePropertyUsages2.0.kt

@@ -6,7 +6,8 @@ public open class Server(private val <caret>foo: String = "foo") {
     open fun processRequest() = foo
 }
 
-public class ServerEx(): Server() {
-    override fun processRequest() = "foo" + foo
+public class ServerEx(): Server(foo = "!") {
+    override fun processRequest() = "foo" + foo // this reference is found as a side effect of big use scope of constructor parameter:
+                                                // if it was simple property, it wouldn't be found
 }
 

idea/testData/findUsages/kotlin/findPropertyUsages/kotlinPrivatePropertyUsages2.1.kt

@@ -2,7 +2,7 @@ import server.*;
 
 class Client {
     public fun foo() {
-        println(Server().foo)
+        println(Server(foo = "!").foo)
         ServerEx().processRequest()
     }
 }

idea/testData/findUsages/kotlin/findPropertyUsages/kotlinPrivatePropertyUsages2.results.txt

@@ -1 +1,5 @@
-Value read (6: 33) open fun processRequest() = foo
+[kotlinPrivatePropertyUsages2.0.kt] Named argument (9: 33) public class ServerEx(): Server(foo = "!") {
+[kotlinPrivatePropertyUsages2.0.kt] Value read (10: 45) override fun processRequest() = "foo" + foo
+[kotlinPrivatePropertyUsages2.0.kt] Value read (6: 33) open fun processRequest() = foo
+[kotlinPrivatePropertyUsages2.1.kt] Named argument (5: 24) println(Server(foo = "!").foo)
+[kotlinPrivatePropertyUsages2.1.kt] Value read (5: 35) println(Server(foo = "!").foo)

idea/testData/findUsages/libraryUsages/_library/library/library.kt

@@ -64,4 +64,9 @@ fun test() {
     val tt = A.T()
     t.bar(2)
     val fff = A.T::bar
+
+    class LocalClass(val localClassProperty: Int) {
+    }
+
+    LocalClass(localClassProperty = 1).localClassProperty
 }

idea/tests/org/jetbrains/kotlin/findUsages/AbstractJetFindUsagesTest.java

@@ -358,11 +358,11 @@ public abstract class AbstractJetFindUsagesTest extends JetLightCodeInsightFixtu
     }
 
     private <T extends PsiElement> void findUsagesAndCheckResults(
-            String mainFileText,
-            String prefix,
-            String rootPath,
-            T caretElement,
-            FindUsagesOptions options
+            @NotNull String mainFileText,
+            @NotNull String prefix,
+            @NotNull String rootPath,
+            @NotNull T caretElement,
+            @Nullable FindUsagesOptions options
     ) throws ClassNotFoundException, InstantiationException, IllegalAccessException {
         Collection<UsageInfo> usageInfos = findUsages(caretElement, options);
 
@@ -419,7 +419,7 @@ public abstract class AbstractJetFindUsagesTest extends JetLightCodeInsightFixtu
         JetTestUtils.assertEqualsToFile(new File(rootPath, prefix + "results.txt"), StringUtil.join(finalUsages, "\n"));
     }
 
-    private Collection<UsageInfo> findUsages(@NotNull PsiElement targetElement, @Nullable FindUsagesOptions options) {
+    protected Collection<UsageInfo> findUsages(@NotNull PsiElement targetElement, @Nullable FindUsagesOptions options) {
         Project project = getProject();
         FindUsagesHandler handler =
                 ((FindManagerImpl) FindManager.getInstance(project)).getFindUsagesManager().getFindUsagesHandler(targetElement, false);

idea/tests/org/jetbrains/kotlin/findUsages/KotlinFindUsagesWithLibraryCustomTest.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2010-2015 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.
+ */
+
+package org.jetbrains.kotlin.findUsages
+
+import com.intellij.psi.search.FilenameIndex
+import org.jetbrains.kotlin.psi.JetParameter
+import org.jetbrains.kotlin.psi.psiUtil.getStrictParentOfType
+import kotlin.test.assertEquals
+
+public class KotlinFindUsagesWithLibraryCustomTest : AbstractKotlinFindUsagesWithLibraryTest() {
+    public fun testFindUsagesForLocalClassProperty() {
+        val libraryFile = FilenameIndex.getFilesByName(getProject(), "library.kt", myFixture.getModule().getModuleWithLibrariesScope()).first()
+        val indexOf = libraryFile.getText().indexOf("localClassProperty")
+        val jetParameter = libraryFile.findElementAt(indexOf)!!.getStrictParentOfType<JetParameter>()!!
+        val usages = findUsages(jetParameter.getOriginalElement(), null)
+        assertEquals(2, usages.size())
+    }
+}