[issue30070] Fix errors handling in the parser module

[Serhiy Storchaka]

Serhiy Storchaka added the comment:


New changeset a79f4c219531c05fc8f670c1e4bbf12c081935d3 by Serhiy Storchaka in branch 'master':
bpo-30070: Fixed leaks and crashes in errors handling in the parser module. (#1131)
https://github.com/python/cpython/commit/a79f4c219531c05fc8f670c1e4bbf12c081935d3


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