Fix test by adding "expected" warnings. These should rather be avoided, but...

Fix test by adding "expected" warnings. These should rather be avoided, but this is the easiest fix for now (and it's not the only ones).

tests/compile/fused_redeclare_T3111.pyx

@@ -25,7 +25,10 @@ _WARNINGS = """
 # cpdef redeclaration bug, from TestCythonScope.pyx
 25:10: 'cpdef_method' redeclared
 36:10: 'cpdef_cname_method' redeclared
+
 # from MemoryView.pyx
+329:0: The 'DEF' statement is deprecated and will be removed in a future Cython version. Consider using global variables, constants, and in-place literals instead. See https://github.com/cython/cython/issues/4310
+329:0: The 'DEF' statement is deprecated and will be removed in a future Cython version. Consider using global variables, constants, and in-place literals instead. See https://github.com/cython/cython/issues/4310
 987:29: Ambiguous exception value, same as default return value: 0
 987:29: Ambiguous exception value, same as default return value: 0
 1014:46: Ambiguous exception value, same as default return value: 0