fix multiple inherited abstract methods

- fix for Tests/A3/J1_supermethod_override11/

TypeNodes.py

@@ -85,9 +85,13 @@ class ClassInterNode(ASTNode):
                 sicOverwritten = False
                 for scc in superClassContains:
                     if type(sic) == type(scc) and sic == scc:
-                        safeReplace(sic, scc, self.name)
-                        sicOverwritten = True
-                        break
+                        # sic is implicitly abstract, if scc is abstract, then it is not replacing sic
+                        # Thus scc will be added to superContains as well (having 1+ abstract methods with same signiture is fine)
+                        # Example: Tests/A3/J1_supermethod_override11/
+                        if 'abstract' not in scc.mods:
+                            safeReplace(sic, scc, self.name)
+                            sicOverwritten = True
+                            break
                 if not sicOverwritten:
                     superContains.append(sic)