[issue38644] Pass explicitly tstate to function calls

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

This adds cost to our most critical code paths.  For example, type_call() will now be slower for every single object instantiation.

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nosy: +rhettinger

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38644>
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