WIP: instrument net/http.ServeHTTP implementations

[nsrip-dd]

What does this PR do?

TODO - description TODO - this is broken right now, see #174 TODO - tests

Here’s what I think we want to instrument:

• http.Handler interface implementations that will be used by an http.Server
• http.HandleFunc(“...”, foo) and http.(*ServeMux).HandleFunc(“...”, foo) should have foo instrumented
• An http.HandlerFunc (explicitly created) should get instrumented

Motivation

Fixes #173

Reviewer's Checklist

• [ ] Changed code has unit tests for its functionality.

[nsrip-dd]

Closing in favor of #403

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.

Project coverage is 56.48%. Comparing base (0acfd19) to head (71230cd). Report is 51 commits behind head on main.

Files with missing lines	Patch %	Lines
instrument/http.go	0.00%	8 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #175      +/-   ##
==========================================
- Coverage   58.16%   56.48%   -1.68%     
==========================================
  Files         151      105      -46     
  Lines       10976     5051    -5925     
==========================================
- Hits         6384     2853    -3531     
+ Misses       4124     1873    -2251     
+ Partials      468      325     -143     

Components	Coverage Δ
Generators	78.38% <ø> (+1.40%)	:arrow_up:
Instruments	61.33% <0.00%> (-26.73%)	:arrow_down:
Go Driver	48.55% <ø> (-24.26%)	:arrow_down:
Toolexec Driver	42.84% <ø> (-28.05%)	:arrow_down:
Aspects	71.34% <ø> (+0.49%)	:arrow_up:
Injector	72.71% <ø> (-0.44%)	:arrow_down:
Job Server	54.18% <ø> (-9.85%)	:arrow_down:
Integration Test Suite	38.68% <ø> (-9.81%)	:arrow_down:
Other	56.48% <0.00%> (-1.68%)	:arrow_down:

Files with missing lines	Coverage Δ
instrument/http.go	0.00% <0.00%> (-100.00%)	:arrow_down:

... and 136 files with indirect coverage changes

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests