Yul IR generation for member access to type types.

test/libsolidity/semanticTests/intheritance/explicit_base_class.sol

@@ -21,7 +21,8 @@ contract Derived is Base {
         return 3;
     }
 }
-
+// ====
+// compileViaYul: also
 // ----
 // g() -> 3
 // f() -> 1

test/libsolidity/semanticTests/intheritance/inherited_function.sol

@@ -14,6 +14,7 @@ contract B is A {
         return A.f();
     }
 }
-
+// ====
+// compileViaYul: also
 // ----
 // g() -> 1