Improve heuristic to decide whether we will generate DefaultImpls for interface

This is not accurate, there are some cases when we will generate DefaultImpls class that are not covered:
- Inherited default implementations
- Annotated members

In these cases IDE will report an error when in fact code compiles
What is critical though is to be able to decide whether to build DefaultImpls light classes solely based on psi without triggering stubs calculation

compiler/light-classes/src/org/jetbrains/kotlin/asJava/lightClassUtils.kt

@@ -104,7 +104,18 @@ public val PsiElement.namedUnwrappedElement: PsiNamedElement?
 
 
 val KtClassOrObject.hasInterfaceDefaultImpls: Boolean
-    get() = this is KtClass && isInterface()
+    get() = this is KtClass && isInterface() && hasNonAbstractMembers(this)
+
+private fun hasNonAbstractMembers(ktInterface: KtClass): Boolean {
+    return ktInterface.declarations.any {
+        isNonAbstractMember(it)
+    }
+}
+
+private fun isNonAbstractMember(member: KtDeclaration?): Boolean {
+    return (member is KtNamedFunction && member.hasBody()) ||
+           (member is KtProperty && (member.hasDelegateExpressionOrInitializer() || member.getter?.hasBody() ?: false || member.setter?.hasBody() ?: false))
+}
 
 private val DEFAULT_IMPLS_CLASS_NAME = Name.identifier(JvmAbi.DEFAULT_IMPLS_CLASS_NAME)
 fun FqName.defaultImplsChild() = child(DEFAULT_IMPLS_CLASS_NAME)