Fixed overridden/implemented line markers in abstract classes.

compiler/frontend/src/org/jetbrains/kotlin/psi/psiUtil/jetPsiUtil.kt

@@ -200,7 +200,7 @@ public fun <T: JetClassOrObject> StubBasedPsiElementBase<out KotlinClassOrObject
 public fun SearchScope.contains(element: PsiElement): Boolean = PsiSearchScopeUtil.isInScope(this, element)
 
 public fun JetClass.isInheritable(): Boolean {
-    return isTrait() || hasModifier(JetTokens.OPEN_KEYWORD)
+    return isTrait() || hasModifier(JetTokens.OPEN_KEYWORD) || hasModifier(JetTokens.ABSTRACT_KEYWORD)
 }
 
 public fun JetDeclaration.isOverridable(): Boolean {

idea/testData/codeInsight/lineMarker/OverrideMemberOfAbstractClass.kt

@@ -0,0 +1,10 @@
+abstract class <lineMarker></lineMarker>A {
+  open fun <lineMarker></lineMarker>a(){
+  }
+}
+
+open class B : A(){
+  override fun <lineMarker></lineMarker>a(){
+  }
+}
+

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

@@ -132,6 +132,12 @@ public class LineMarkersTestGenerated extends AbstractLineMarkersTest {
         doTest(fileName);
     }
 
+    @TestMetadata("OverrideMemberOfAbstractClass.kt")
+    public void testOverrideMemberOfAbstractClass() throws Exception {
+        String fileName = JetTestUtils.navigationMetadata("idea/testData/codeInsight/lineMarker/OverrideMemberOfAbstractClass.kt");
+        doTest(fileName);
+    }
+
     @TestMetadata("OverridenTraitDeclarations.kt")
     public void testOverridenTraitDeclarations() throws Exception {
         String fileName = JetTestUtils.navigationMetadata("idea/testData/codeInsight/lineMarker/OverridenTraitDeclarations.kt");