Warn about topk, bottomk and other sampling functions

[prymitive]

Fixes #820.

[github-actions]

This pull request was validated by pint.

✔️ No problems found

Stats

Stat	Value
Version	v0.66.1-34-gb4490ca
Number of rules parsed	4
Number of rules checked	4
Number of problems found	0
Number of offline checks	0
Number of online checks	0
Checks duration	0

Problems

No problems reported

[github-actions]

Benchmark diff:

goos: linux
goarch: amd64
pkg: github.com/cloudflare/pint/cmd/pint
cpu: AMD EPYC 7763 64-Core Processor                
              │   old.txt   │              new.txt               │
              │   sec/op    │   sec/op     vs base               │
FindEntries-4   39.28m ± 2%   39.37m ± 3%       ~ (p=0.631 n=10)
CheckRules-4     8.519 ± 2%    8.526 ± 2%       ~ (p=0.579 n=10)
geomean         578.4m        579.4m       +0.16%

              │   old.txt    │               new.txt               │
              │     B/op     │     B/op      vs base               │
FindEntries-4   27.41Mi ± 0%   27.41Mi ± 0%       ~ (p=0.190 n=10)
CheckRules-4    977.7Mi ± 0%   977.6Mi ± 0%       ~ (p=0.971 n=10)
geomean         163.7Mi        163.7Mi       -0.01%

              │   old.txt   │              new.txt               │
              │  allocs/op  │  allocs/op   vs base               │
FindEntries-4   131.9k ± 0%   131.9k ± 0%       ~ (p=0.190 n=10)
CheckRules-4    14.19M ± 0%   14.19M ± 0%       ~ (p=0.739 n=10)
geomean         1.368M        1.368M       -0.00%

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 98.84393% with 2 lines in your changes missing coverage. Please review.

Project coverage is 94.78%. Comparing base (8856982) to head (b4490ca).

Files with missing lines	Patch %	Lines
internal/parser/utils/source.go	98.59%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1157      +/-   ##
==========================================
+ Coverage   94.73%   94.78%   +0.04%     
==========================================
  Files         103      104       +1     
  Lines       12110    12258     +148     
==========================================
+ Hits        11473    11619     +146     
- Misses        485      487       +2     
  Partials      152      152              

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