2.6 and before COME_FROM handling...

also, add in some of the test bytecode from the python-2.4 branch

test/simple_source/bug25/08_if_while_else.py

@@ -0,0 +1,13 @@
+# From 2.3 Queue.py
+# Bug was adding COME_FROM from while
+# confusing the else
+def put(item, block=True, timeout=None):
+    if block:
+        if timeout:
+            while True:
+                if item:
+                    block = 1
+        else:
+            block = 5
+    elif item:
+        block = False

uncompyle6/parsers/parse26.py

@@ -115,8 +115,7 @@ class Python26Parser(Python2Parser):
 
         # Semantic actions want else_suitel to be at index 3
         ifelsestmtl ::= testexpr c_stmts_opt cf_jb_cf_pop else_suitel
-
-        ifelsestmtc ::= testexpr c_stmts_opt ja_cf_pop else_suitec
+        ifelsestmtc ::= testexpr c_stmts_opt ja_cf_pop    else_suitec
 
         # Semantic actions want suite_stmts_opt to be at index 3
         withstmt ::= expr setupwith SETUP_FINALLY suite_stmts_opt

uncompyle6/scanners/scanner2.py

@@ -1127,7 +1127,13 @@ class Scanner2(Scanner):
                                     source = self.setup_loops[label]
                                 else:
                                     source = offset
-                                targets[label] = targets.get(label, []) + [source]
+                                # FIXME: The grammar for 2.6 and before doesn't
+                                # handle COME_FROM's from a loop inside if's
+                                # It probably should.
+                                if (self.version > 2.6 or
+                                    self.code[source] != self.opc.SETUP_LOOP or
+                                        self.code[label] != self.opc.JUMP_FORWARD):
+                                    targets[label] = targets.get(label, []) + [source]
                                 pass
                             pass
                         pass