Remove 3-arg raise in 3.x and..

add tests in 2.x

test/simple_source/bug26/02_except_as.py

@@ -1,4 +1,6 @@
 # From 2.6.9 ConfigParser.py
+# Note this can only be compiled in Python 2.x
+#
 # Bug was being able to handle:
 #   except KeyError, e
 # vs 2.6+.
@@ -12,7 +14,12 @@
 #
 # Python 2.6 allows both, but we use the older form since
 # that matches the grammar for how this gets parsed
+
 try:
     value = "foo"
+except RuntimeError:
+    # Test:
+    #  raise_stmt3 ::= expr expr expr RAISE_VARARGS_3
+    raise 1, 2, 3
 except KeyError, e:
     raise RuntimeError('foo')

uncompyle6/parsers/parse3.py

@@ -99,12 +99,10 @@ class Python3Parser(PythonParser):
         stmt ::= raise_stmt0
         stmt ::= raise_stmt1
         stmt ::= raise_stmt2
-        stmt ::= raise_stmt3
 
         raise_stmt0 ::= RAISE_VARARGS_0
         raise_stmt1 ::= expr RAISE_VARARGS_1
         raise_stmt2 ::= expr expr RAISE_VARARGS_2
-        raise_stmt3 ::= expr expr expr RAISE_VARARGS_3
 
         del_stmt ::= delete_subscr
         delete_subscr ::= expr expr DELETE_SUBSCR