Collect local declarations under properties (KT-14215); improve presentation of object declarations

#KT-14215 Fixed

idea/idea-analysis/src/org/jetbrains/kotlin/idea/structureView/KotlinStructureElementPresentation.kt

@@ -29,6 +29,7 @@ import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
 import org.jetbrains.kotlin.idea.KotlinDescriptorIconProvider
 import org.jetbrains.kotlin.psi.KtAnonymousInitializer
 import org.jetbrains.kotlin.psi.KtModifierListOwner
+import org.jetbrains.kotlin.psi.KtObjectDeclaration
 import org.jetbrains.kotlin.psi.KtPsiUtil
 import org.jetbrains.kotlin.renderer.DescriptorRenderer.Companion.ONLY_NAMES_WITH_SHORT_TYPES
 import org.jetbrains.kotlin.resolve.DescriptorUtils.getAllOverriddenDeclarations
@@ -82,6 +83,10 @@ internal class KotlinStructureElementPresentation(
     }
 
     private fun getElementText(navigatablePsiElement: NavigatablePsiElement, descriptor: DeclarationDescriptor?): String? {
+        if (navigatablePsiElement is KtObjectDeclaration && navigatablePsiElement.isObjectLiteral()) {
+            return "object" + (navigatablePsiElement.getSuperTypeList()?.text?.let { " : $it" } ?: "")
+        }
+
         if (descriptor != null) {
             return ONLY_NAMES_WITH_SHORT_TYPES.render(descriptor)
         }

idea/idea-analysis/src/org/jetbrains/kotlin/idea/structureView/KotlinStructureViewElement.kt

@@ -90,7 +90,7 @@ class KotlinStructureViewElement(val element: NavigatablePsiElement,
             is KtFile -> element.declarations
             is KtClass -> element.getStructureDeclarations()
             is KtClassOrObject -> element.declarations
-            is KtFunction, is KtClassInitializer -> element.collectLocalDeclarations()
+            is KtFunction, is KtClassInitializer, is KtProperty -> element.collectLocalDeclarations()
             else -> emptyList()
         }
 

idea/testData/structureView/fileStructure/AnonymousObjectMembers.after

@@ -0,0 +1,10 @@
+-AnonymousObjectMembers.kt
+ -C
+  -bar(): Unit
+   -object : Runnable
+    run(): Unit
+    xyzzy(): Unit
+  -f: Runnable
+   -object : Runnable
+    run(): Unit
+    xyzzy(): Unit

idea/testData/structureView/fileStructure/AnonymousObjectMembers.kt

@@ -0,0 +1,15 @@
+class C {
+    val f = object : Runnable {
+        fun run() { }
+
+        fun xyzzy() { }
+    }
+
+    fun bar() {
+        val g = object : Runnable {
+            fun run() { }
+
+            fun xyzzy() { }
+        }
+    }
+}

idea/testData/structureView/fileStructure/Render.after

@@ -19,7 +19,8 @@
   a: Int
  a: Int
  a: String on Comparable<T>
- b: Any
+ -b: Any
+  object
  -Enum1
   FIRST
   SECOND

idea/tests/org/jetbrains/kotlin/idea/structureView/KotlinFileStructureTestGenerated.java

@@ -36,6 +36,12 @@ public class KotlinFileStructureTestGenerated extends AbstractKotlinFileStructur
         KotlinTestUtils.assertAllTestsPresentByMetadata(this.getClass(), new File("idea/testData/structureView/fileStructure"), Pattern.compile("^([^.]+)\\.kt$"), TargetBackend.ANY, true);
     }
 
+    @TestMetadata("AnonymousObjectMembers.kt")
+    public void testAnonymousObjectMembers() throws Exception {
+        String fileName = KotlinTestUtils.navigationMetadata("idea/testData/structureView/fileStructure/AnonymousObjectMembers.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("CheckLocationForKotlin.kt")
     public void testCheckLocationForKotlin() throws Exception {
         String fileName = KotlinTestUtils.navigationMetadata("idea/testData/structureView/fileStructure/CheckLocationForKotlin.kt");