wrong return type for _Py_HashDouble, impacts 64-bit windows

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branch : release-pypy3.7-v7.x
2 jobs for branch/release-pypy3.7-v7.x in 8 minutes and 56 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #194582
check_rpython_annotations

00:07:21

passed #194583
hpy_tests

00:08:55