Fix Python 2.4-2.6 comp_for text generation...

Makefile: tolerate pypy 5.3.x
Rest: fix semantic action rule for comp_for and test this

Makefile

@@ -42,7 +42,7 @@ check-2.6:
 
 #:PyPy 2.6.1 or PyPy 5.0.1
 # Skip for now
-2.6 5.0:
+2.6 5.0 5.3:
 
 #:PyPy pypy3-2.4.0 Python 3:
 pypy-3.2 2.4:

test/simple_source/bug26/04_comp_for.py

@@ -0,0 +1,4 @@
+# From python2.6/_abcoll.py
+# Bug was wrong code for "comp_for" giving
+# "for  in x" instead of: "for x in y"
+chain = (e for s in (self, other) for x in y)

uncompyle6/semantics/pysource.py

@@ -223,7 +223,6 @@ TABLE_DIRECT = {
     'lc_body':		( '', ),	# ignore when recusing
 
     'comp_iter':	( '%c', 0),
-    'comp_for':		( ' for %c in %c%c', 2, 0, 3 ),
     'comp_if':		( ' if %c%c', 0, 2 ),
     'comp_ifnot':	( ' if not %p%c', (0, 22), 2 ),
     'comp_body':	( '', ),	# ignore when recusing
@@ -596,6 +595,14 @@ class SourceWalker(GenericASTTraversal, object):
             TABLE_DIRECT.update({
                 'except_cond3':	( '%|except %c, %c:\n', 1, 6 ),
             })
+        if 2.4 <= version <= 2.6:
+            TABLE_DIRECT.update({
+                'comp_for':	( ' for %c in %c', 3, 1 ),
+            })
+        else:
+            TABLE_DIRECT.update({
+                'comp_for':	( ' for %c in %c%c', 2, 0, 3 ),
+            })
 
 
         ##########################