Reverse order of inlined functions in stacks

[r1viollet]

What does this PR do?

There is a bug in how the inlined functions are ordered in the stack traces

Motivation

Fixing a report from the user.

Additional Notes

The test was incomplete and did not catch the issue.

How to test the change?

DataDog/prof-correctness#48

[pr-commenter]

Benchmark results for collatz

Parameters

	Baseline	Candidate
config	baseline	candidate
profiler-version	ddprof 0.19.0+92480eba.53556101	ddprof 0.19.0+07c7ad1c.58377769

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 1 metrics, 0 unstable metrics.

See unchanged results

scenario	Δ mean execution_time
scenario:ddprof -S bench-collatz --preset cpu_only collatz_runner.sh	same

[pr-commenter]

Benchmark results for BadBoggleSolver_run

Parameters

	Baseline	Candidate
config	baseline	candidate
profiler-version	ddprof 0.19.0+92480eba.53556101	ddprof 0.19.0+07c7ad1c.58377769

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 1 metrics, 0 unstable metrics.

See unchanged results

scenario	Δ mean execution_time
scenario:ddprof -S bench-bad-boggle-solver BadBoggleSolver_run work 1000	same