tests: Rename "array" module to "uarray".

tests/basics/memoryview_intbig.py

@@ -1,10 +1,17 @@
 # test memoryview accessing maximum values for signed/unsigned elements
 try:
-    from array import array
     memoryview
 except:
     print("SKIP")
     raise SystemExit
+try:
+    from uarray import array
+except ImportError:
+    try:
+        from array import array
+    except ImportError:
+        print("SKIP")
+        raise SystemExit
 
 print(list(memoryview(array('i', [0x7f000000, -0x80000000]))))
 print(list(memoryview(array('I', [0x7f000000, 0x80000000, 0x81000000, 0xffffffff]))))