Add testcase for issue-32948

[ParkHanbum]

#32948

issue-32948 is similar to issue-32554.

issue-32948 : Symbol names for monomorphized trait impls are not stable across crates
issue-32554 : Symbol names for generics are not stable across crates

so, I append issue-32948's testcase to issue-32554's testcase.
thanks!

[rust-highfive]

Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @nikomatsakis (or someone else) soon.

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[nikomatsakis]

r? @michaelwoerister

[michaelwoerister]

Thanks a lot, @ParkHanbum!
This sed script is getting a bit unreadable (due to no fault of yours). Can you replace it with the following?:

# The following command will:
#  1. dump the symbols of a library using `nm`
#  2. extract only those lines that we are interested in via `grep`
#  3. from those lines, extract just the symbol name via `sed`
#     (symbol names always start with "_ZN" and end with "E")
#  4. sort those symbol names for deterministic comparison
#  5. write the result into a file

dump-symbols = nm "$(TMPDIR)/lib$(1).rlib" \
             | grep -E "some_test_function|Bar|bar" \
             | sed "s/.*\(_ZN.*E\).*/\1/" \
             | sort \
             > "$(TMPDIR)/$(1).nm"

That would make it easier for future maintainers. If you do that, I'd be happy to approve the PR.

[ParkHanbum]

@michaelwoerister cosider it done!! I'll be better then this PR next. thanks a lot !!

[michaelwoerister]

@bors r+

[bors]

📌 Commit cb700e7 has been approved by michaelwoerister

[michaelwoerister]

Thanks a lot, @ParkHanbum! My comment wasn't meant as criticism. sed scripts are just hard to decipher :)

[michaelwoerister]

@bors p=rollup

Let's see if that works...

[michaelwoerister]

@bors rollup

[michaelwoerister]

🎉