prompts: linkify code refs in investigate.md

[pav-kv]

Epic: none
Release note: none

[trunk-io]

😎 Merged successfully - details.

[cockroach-teamcity]

This change is 

[tbg]

This seems to be the wrong place (you're in the kind of "template section" of the prompt). I'd expect advice like this at around line 207.

[pav-kv]

I was hoping to avoid too many links (like in all the code walkthrough in Analysis), so put it in this section where it is most needed (to jump straight to the test code / failure).

Not feeling strongly, can move. I can probably ask it to be not too aggressive with linking everything.

[tbg]

This works for me!

[tbg]

LGTM w nit

[pav-kv]

Tried this change locally. For #164008, the output is satisfactory:

Where the Failure Occurs

The test fails with a goroutine leak detected by leaktest.AfterTest. The leaked goroutine (1077) is stuck sleeping inside maybeRetryWithWait at work_queue_test.go:377, called from the test goroutine at line 695.

[tbg]

Great! Merge whenever.

Github also has the nice preview-style things:

cockroach/pkg/util/admission/work_queue_test.go

Line 377 in 909a547

time.Sleep(100 * time.Millisecond)

but I assume you know these and prefer the inline links, which is fine by me.

Still LGTM 😄

[tbg]

/trunk merge

[pav-kv]

I assume you know these and prefer the inline links, which is fine by me

Yeah, it's less spammy that way. I typically want to click through and see a larger context around the line anyway (but rendering a larger code block inline would make the thing too big, plus it's not clear how much context is needed).