bpo-36184:Made 'is_waiting_for_gil' function more portable.

[ananthan-123]

https://bugs.python.org/issue36184

[codecov]

Codecov Report

Merging #18538 into master will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master   #18538     +/-   ##
=========================================
  Coverage   82.11%   82.12%             
=========================================
  Files        1956     1955      -1     
  Lines      589364   584024   -5340     
  Branches    44457    44457             
=========================================
- Hits       483966   479613   -4353     
+ Misses      95746    94762    -984     
+ Partials     9652     9649      -3     

Impacted Files	Coverage Δ
Lib/distutils/tests/test_bdist_rpm.py	30.00% <0.00%> (-65.00%)	⬇️
Lib/distutils/command/bdist_rpm.py	7.63% <0.00%> (-56.88%)	⬇️
Lib/test/test_urllib2net.py	76.92% <0.00%> (-13.85%)	⬇️
Lib/test/test_smtpnet.py	78.57% <0.00%> (-7.15%)	⬇️
Lib/ftplib.py	63.85% <0.00%> (-6.06%)	⬇️
Lib/test/test_ftplib.py	87.11% <0.00%> (-4.72%)	⬇️
Tools/scripts/db2pickle.py	17.82% <0.00%> (-3.97%)	⬇️
Tools/scripts/pickle2db.py	16.98% <0.00%> (-3.78%)	⬇️
Lib/test/test_socket.py	71.94% <0.00%> (-3.77%)	⬇️
Lib/test/test_asyncio/test_base_events.py	91.84% <0.00%> (-3.30%)	⬇️
... and 322 more

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[vstinner]

Hum, why did you close your PR?