Minor testcase fixes

tests/run/cdef_setitem_T284.pyx

@@ -6,7 +6,7 @@ __doc__ = u'''
 >>> test_list(range(11), "invalid index", None)
 Traceback (most recent call last):
 ...
-TypeError: list indices must be integers, not str
+TypeError: list indices must be integers
 '''
 def no_cdef():
     lst = range(11)

tests/run/numpy_test.pyx

@@ -190,7 +190,7 @@ try:
     >>> test_bad_cast()
     Traceback (most recent call last):
         ...
-    ValueError: Item size of buffer (1 byte) does not match size of 'long' (8 bytes)
+    ValueError: Item size of buffer (1 byte) does not match size of 'int' (4 bytes)
     
 """
 except:
@@ -350,7 +350,7 @@ def test_good_cast():
 
 def test_bad_cast():
     # This should raise an exception
-    cdef np.ndarray[long, cast=True] arr = np.array([1], dtype=b'b')
+    cdef np.ndarray[int, cast=True] arr = np.array([1], dtype=b'b')
 
 cdef packed struct PackedStruct:
     char a