Add missing DECREF to PyErr_WriteUnraisable(). That function reports

exceptions that can't be raised any further, because (for instance) they
occur in __del__ methods. The coroutine tests in test_generators was
triggering this leak. Remove the leakers' testcase, and add a simpler
testcase that explicitly tests this leak to test_generators.

test_generators now no longer leaks at all, on my machine. This fix may also
solve other leaks, but my full refleakhunting run is still busy, so who
knows?

1 files changed, 0 insertions, 19 deletions

diff --git a/Lib/test/leakers/test_gen1.py b/Lib/test/leakers/test_gen1.py
deleted file mode 100644
index 72f644d..0000000
--- a/Lib/test/leakers/test_gen1.py
+++ /dev/null
@@ -1,19 +0,0 @@
-import gc
-
-# Taken from test_generators
-
-def f():
-    try:
-        yield
-    except GeneratorExit:
-        yield "foo!"
-
-def inner_leak():
-    g = f()
-    g.next()
-
-def leak():
-    inner_leak()
-    gc.collect()
-    gc.collect()
-    gc.collect()