Bug report

Bug description:

In the Specialization effectiveness
section, there are a few issues.

• The deferred by instruction stats for RESUME are way off.
• We count misses as specialization failures. They are not.
• We treat JUMP_BACKWARDS as a specializable instruction as it has a counter. It is not.

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response

Linked PRs

• GH-111213: Fix a few broken stats #111216