PY-14765 Move stubs for "abc" to mock SDK, so its symbols were resolved as built-ins when imports are inserted

python/testData/MockSdk3.4/Lib/abc.py

@@ -0,0 +1,11 @@
+# Stubs
+
+class object:
+    pass
+
+class ABCMeta:
+    pass
+
+
+def abstractmethod(foo):
+    pass

python/testData/refactoring/pullup/abstractMethodPy2AddMeta/SuperClass.after.py

@@ -1,5 +1,5 @@
-from abc import ABCMeta
 from abc import abstractmethod
+from abc import ABCMeta
 
 
 class Parent(object):

python/testData/refactoring/pullup/abstractMethodPy3AddMeta/SuperClass.after.py

@@ -1,6 +1,8 @@
-from abc import ABCMeta
-from abc import abstractmethod
 from abc import object
+from abc import abstractmethod
+from abc import ABCMeta
+
+
 class Parent(object, metaclass=ABCMeta):
     @abstractmethod
     def my_method(self, foo):

python/testSrc/com/jetbrains/python/refactoring/classes/pullUp/PyPullUpTest.java

@@ -15,7 +15,6 @@
  */
 package com.jetbrains.python.refactoring.classes.pullUp;
 
-import com.intellij.util.ArrayUtil;
 import com.jetbrains.python.psi.LanguageLevel;
 import com.jetbrains.python.psi.PyClass;
 import com.jetbrains.python.psi.PyElement;
@@ -147,7 +146,7 @@ public class PyPullUpTest extends PyClassRefactoringTest {
    */
   private void checkAbstract(@NotNull final String... methodNames) {
     final String[] modules = {"Class", "SuperClass"};
-    configureMultiFile(ArrayUtil.mergeArrays(modules, "abc"));
+    configureMultiFile(modules);
     doPullUp("Child", "Parent", true, methodNames);
     checkMultiFile(modules);
   }