Fix "'Redundant modality' is not reported with all-open" (KT-18195)

idea/idea-core/src/org/jetbrains/kotlin/idea/core/psiModificationUtils.kt

@@ -279,7 +279,7 @@ fun KtDeclaration.implicitModality(): KtModifierKeywordToken {
     for (extension in extensions) {
         val newModality = extension.refineDeclarationModality(
                 this,
-                null,
+                descriptor as? ClassDescriptor,
                 containingDescriptor,
                 mapModalityToken(predictedModality),
                 bindingContext,

idea/testData/inspections/kt18195/inspectionData/expected.xml

@@ -0,0 +1,10 @@
+<problems>
+    <problem>
+        <file>test.kt</file>
+        <line>4</line>
+        <module>light_idea_test_case</module>
+        <entry_point TYPE="file" FQNAME="temp:///src/test.kt" />
+        <problem_class severity="WARNING" attribute_key="NOT_USED_ELEMENT_ATTRIBUTES">Redundant modality modifier</problem_class>
+        <description>Redundant modality modifier</description>
+    </problem>
+</problems>

idea/testData/inspections/kt18195/inspectionData/inspections.test

@@ -0,0 +1 @@
+// INSPECTION_CLASS: org.jetbrains.kotlin.idea.inspections.RedundantModalityModifierInspection

idea/testData/inspections/kt18195/test.kt

@@ -0,0 +1,4 @@
+annotation class AllOpen
+
+@AllOpen
+open class My

idea/tests/org/jetbrains/kotlin/idea/codeInsight/InspectionTestGenerated.java

@@ -227,6 +227,12 @@ public class InspectionTestGenerated extends AbstractInspectionTest {
             doTest(fileName);
         }
 
+        @TestMetadata("kt18195/inspectionData/inspections.test")
+        public void testKt18195_inspectionData_Inspections_test() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("idea/testData/inspections/kt18195/inspectionData/inspections.test");
+            doTest(fileName);
+        }
+
         @TestMetadata("leakingThis/inspectionData/inspections.test")
         public void testLeakingThis_inspectionData_Inspections_test() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("idea/testData/inspections/leakingThis/inspectionData/inspections.test");