improve str macro doc help

[Moelf]

close #38334
before:

help?> raw
search: RawFD @raw_str RoundNearestTiesAway

Couldn't find raw
Perhaps you meant rand, read, real, rpad, rem, rm, run, NaN, Val, cat, map, max, tan, new, RawFD, ratio, randn or range
  No documentation found

after:

help?> raw
search: RawFD raw"" @raw_str RoundNearestTiesAway

Couldn't find raw
Perhaps you meant rand, read, real, rpad, rem, rm, run, NaN, Val, cat, map, max, tan, new, RawFD, randn, range or read!
  No documentation found.

[NHDaly]

Looks great to me! :) thanks for the PR!

[NHDaly]

Some of your tests are failing. Also, it would help if you updated the description comment on this PR with an indication of what this changes, and included a before/after example output from the help system.

[NHDaly]

Ah, the failing test should be easy to fix.

I copied this from the buildbot links above:

Error in testset REPL:
Test Failed at /Users/julia/buildbot/worker-tabularasa/tester_macos64/build/share/julia/stdlib/v1.7/REPL/test/replcompletions.jl:10
  Expression: (REPL.doc_completions(i))[1] == i
   Evaluated: "var\"\"" == "@var_str"

And here's the test it's referring to:

julia/stdlib/REPL/test/replcompletions.jl

Lines 8 to 12 in f425ce7

	symbols = ["?","=","[]","[","]","{}","{","}",";","","'","&&","||","julia","Julia","new","@var_str"]
	for i in symbols
	@test REPL.doc_completions(i)[1]==i
	end
	end

That last test will fail, since when you ask for doc_completions("@var_str"), the first result is now var"". You could probably resolve this by changing that line to:

         @test i ∈ REPL.doc_completions(i)

And you might also want to add var"" to the list of search strings?

[Moelf]

And you might also want to add var"" to the list of search strings?

what does this mean?

[ViralBShah]

Let's rebase this to prepare for merging.

[NHDaly]

And you might also want to add var"" to the list of search strings?

what does this mean?

sorry for my looooong delay. i think that i must have misunderstood something - my concern is addressed. ✅

[ViralBShah]

Merge?

[ViralBShah]

Merge?

[Moelf]

back port 1.8?

[giordano]

Ugh, this line had a trailing whitespace

[Moelf]

Oops