Patch #1537 from Chad Austin
Change GeneratorExit's base class from Exception to BaseException
diff --git a/Lib/test/exception_hierarchy.txt b/Lib/test/exception_hierarchy.txt
index 965252c..73ccb66 100644
--- a/Lib/test/exception_hierarchy.txt
+++ b/Lib/test/exception_hierarchy.txt
@@ -1,8 +1,8 @@
 BaseException
  +-- SystemExit
  +-- KeyboardInterrupt
+ +-- GeneratorExit
  +-- Exception
-      +-- GeneratorExit
       +-- StopIteration
       +-- ArithmeticError
       |    +-- FloatingPointError