Create SyntheticMemberDescriptor interface

Implement this interface by sam adapters/constructors and use it in navigation

 #KT-11708 Fixed

idea/testData/resolve/referenceWithLib/overridingFunctionWithSamAdapter.kt

@@ -0,0 +1,13 @@
+package test
+
+class MyClass: Test() {
+
+}
+
+fun test(m: MyClass) {
+    m.ac<caret>t {
+
+    }
+}
+
+// REF: (in test.Test).act(Action)