Add more logging around stack generation

[estringana]

Description

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.96%. Comparing base (4da93b3) to head (6683b32).
Report is 5 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (4da93b3) and HEAD (6683b32). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (4da93b3)	HEAD (6683b32)
tracer-php	11	10

Additional details and impacted files

@@              Coverage Diff              @@
##             master    #3096       +/-   ##
=============================================
- Coverage     74.86%   51.96%   -22.91%     
  Complexity     2792     2792               
=============================================
  Files           112      112               
  Lines         11046    11046               
=============================================
- Hits           8270     5740     -2530     
- Misses         2776     5306     +2530     

Flag	Coverage Δ
tracer-php	51.96% <ø> (-22.91%)	⬇️

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see 21 files with indirect coverage changes

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[pr-commenter]

Benchmarks [ appsec ]

Benchmark execution time: 2025-02-20 17:29:50

Comparing candidate commit 1bf12b2 in PR branch estringana/add-more-loggin-around-stacktrace-generation with baseline commit 4da93b3 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 12 metrics, 0 unstable metrics.

[Anilm3]

In terms of nomenclature you have backtrace, stacktrace and backtrace stack, maybe use one term only?