'Suppress warnings' as quick fix options

If no quick fix is available a special intention is shown

idea/testData/quickfix/suppress/declarationKinds/afterClassObject.kt

@@ -0,0 +1,8 @@
+// "Suppress 'REDUNDANT_NULLABLE' for class object of C" "true"
+
+class C {
+    [suppress("REDUNDANT_NULLABLE")]
+    class object {
+        var foo: String?<caret>? = null
+    }
+}