Minor fixes

src/codegen/unwinding.cpp

@@ -919,6 +919,7 @@ BORROWED(Box*) FrameInfo::updateBoxedLocals() {
             PyDict_SetItem(d, boxedName, val);
         } else {
             PyDict_DelItem(d, boxedName);
+            PyErr_Clear();
         }
     }
 

src/runtime/dict.cpp

@@ -438,10 +438,11 @@ Box* dictDelitem(BoxedDict* self, Box* k) {
         raiseExcHelper(KeyError, k);
     }
 
+    Box* old_k = it->first.value;
     Box* v = it->second;
     self->d.erase(it);
     Py_DECREF(v);
-    Py_DECREF(k);
+    Py_DECREF(old_k);
 
     Py_RETURN_NONE;
 }

test/tests/static_closure_locations.py

-# expected: reffail
 # The use of c makes sure a closure gets passed through all 4 functions.
 # The use of a in g makes sure that a is in f's closure.
 # The a in j should refer to the a in h, thus throwing an exception since

test/tests/super_long_string.py

-# expected: reffail
 import os
 import sys