Python 3.8 while and whileTrue loops

test/simple_source/bug38/00_while_true_pass.py

@@ -0,0 +1,6 @@
+# The 3.8 bugs were in detecting
+# 1) while True: pass
+# 2) confusing the "if" ending in a loop jump with a "while"
+if __name__:
+    while True:
+        pass

uncompyle6/parsers/parse38.py

@@ -142,6 +142,7 @@ class Python38Parser(Python37Parser):
         while1stmt         ::= _come_froms l_stmts COME_FROM JUMP_BACK COME_FROM_LOOP
         whileTruestmt38    ::= _come_froms l_stmts JUMP_BACK
         whileTruestmt38    ::= _come_froms l_stmts JUMP_BACK COME_FROM_EXCEPT_CLAUSE
+        whileTruestmt38    ::= _come_froms pass JUMP_BACK
 
         for_block          ::= _come_froms l_stmts_opt _come_from_loops JUMP_BACK
 

uncompyle6/semantics/customize38.py

@@ -125,7 +125,10 @@ def customize_for_version38(self, version):
                 (1, "testexpr"),
                 (2, ("l_stmts", "pass")),
             ),
-            "whileTruestmt38": ("%|while True:\n%+%c%-\n\n", (1, "l_stmts", "pass"),),
+            "whileTruestmt38": (
+                "%|while True:\n%+%c%-\n\n",
+                (1, ("l_stmts", "pass")),
+            ),
             "try_elsestmtl38": (
                 "%|try:\n%+%c%-%c%|else:\n%+%c%-",
                 (1, "suite_stmts_opt"),