Rewrite .gitattributes CRLF ui tests into run-make tests

[Oneirical]

These tests are difficult to edit. Even adding a newline to the original UI test breaks it, as all newlines in it are supposed to be \r\n.

In the run-make suite, the test is instead automatically generated with \r\n clearly visible, making fixes easier.

Closes #140033
Closes #139968

r? @jieyouxu

[rustbot]

jieyouxu is not on the review rotation at the moment.
They may take a while to respond.

[rustbot]

This PR modifies run-make tests.

cc @jieyouxu

[rust-log-analyzer]

The job aarch64-gnu-llvm-19-1 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

---- [run-make] tests/run-make/json-bom-plus-crlf stdout ----

error: run-make test failed: could not build `rmake.rs` recipe
status: exit status: 1
command: RUSTC_BOOTSTRAP="-1" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage0/bin/rustc" "-o" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/run-make/json-bom-plus-crlf/rmake" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release/deps" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/release/deps" "--extern" "run_make_support=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release/librun_make_support.rlib" "--edition=2021" "/checkout/tests/run-make/json-bom-plus-crlf/rmake.rs" "-Cprefer-dynamic" "-Dunused_must_use"
stdout: none
--- stderr -------------------------------
error[E0432]: unresolved import `run_make_support::tmp_dir`
##[error] --> /checkout/tests/run-make/json-bom-plus-crlf/rmake.rs:4:42
  |
4 | use run_make_support::{diff, rfs, rustc, tmp_dir};
  |                                          ^^^^^^^ no `tmp_dir` in the root

error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
##[error]  --> /checkout/tests/run-make/json-bom-plus-crlf/rmake.rs:23:42
   |
23 |     rfs::write(&main_path, main_content).unwrap();
   |                                          ^^^^^^ method not found in `()`

error[E0599]: no method named `unwrap` found for struct `Vec<u8>` in the current scope
##[error]  --> /checkout/tests/run-make/json-bom-plus-crlf/rmake.rs:25:44
   |
25 |     let main_bytes = rfs::read(&main_path).unwrap();
   |                                            ^^^^^^
   |
help: there is a method `swap` with a similar name, but with different arguments
  --> /rustc/95597e848d27a82b8864c677ab807e9f0be1f68c/library/core/src/slice/mod.rs:896:5

---
---- [run-make] tests/run-make/json-bom-plus-crlf-multifile stdout ----

error: run-make test failed: could not build `rmake.rs` recipe
status: exit status: 1
command: RUSTC_BOOTSTRAP="-1" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage0/bin/rustc" "-o" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/run-make/json-bom-plus-crlf-multifile/rmake" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release/deps" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/release/deps" "--extern" "run_make_support=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release/librun_make_support.rlib" "--edition=2021" "/checkout/tests/run-make/json-bom-plus-crlf-multifile/rmake.rs" "-Cprefer-dynamic" "-Dunused_must_use"
stdout: none
--- stderr -------------------------------
error[E0432]: unresolved import `run_make_support::tmp_dir`
##[error] --> /checkout/tests/run-make/json-bom-plus-crlf-multifile/rmake.rs:4:36
  |
---

error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
##[error]  --> /checkout/tests/run-make/json-bom-plus-crlf-multifile/rmake.rs:22:84
   |
22 |     rfs::write(tmp_dir().join("json-bom-plus-crlf-multifile-aux.rs"), aux_content).unwrap();
   |                                                                                    ^^^^^^ method not found in `()`

error[E0599]: no method named `unwrap` found for struct `Vec<u8>` in the current scope
##[error]  --> /checkout/tests/run-make/json-bom-plus-crlf-multifile/rmake.rs:24:86
   |
24 |     let aux_bytes = rfs::read(tmp_dir().join("json-bom-plus-crlf-multifile-aux.rs")).unwrap();
   |                                                                                      ^^^^^^
   |
help: there is a method `swap` with a similar name, but with different arguments
  --> /rustc/95597e848d27a82b8864c677ab807e9f0be1f68c/library/core/src/slice/mod.rs:896:5

error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
##[error]  --> /checkout/tests/run-make/json-bom-plus-crlf-multifile/rmake.rs:36:81
   |
36 |     rfs::write(tmp_dir().join("json-bom-plus-crlf-multifile.rs"), main_content).unwrap();
   |                                                                                 ^^^^^^ method not found in `()`

error: aborting due to 5 previous errors

Some errors have detailed explanations: E0425, E0432, E0599.
For more information about an error, try `rustc --explain E0425`.
------------------------------------------


---- [run-make] tests/run-make/lexer-crlf-line-endings-string-literal-doc-comment stdout ----

error: run-make test failed: could not build `rmake.rs` recipe
status: exit status: 1
command: RUSTC_BOOTSTRAP="-1" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage0/bin/rustc" "-o" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/run-make/lexer-crlf-line-endings-string-literal-doc-comment/rmake" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release/deps" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/release/deps" "--extern" "run_make_support=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release/librun_make_support.rlib" "--edition=2021" "/checkout/tests/run-make/lexer-crlf-line-endings-string-literal-doc-comment/rmake.rs" "-Cprefer-dynamic" "-Dunused_must_use"
stdout: none
--- stderr -------------------------------
error[E0432]: unresolved import `run_make_support::tmp_dir`
##[error] --> /checkout/tests/run-make/lexer-crlf-line-endings-string-literal-doc-comment/rmake.rs:3:41
  |
---

error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
##[error]  --> /checkout/tests/run-make/lexer-crlf-line-endings-string-literal-doc-comment/rmake.rs:33:42
   |
33 |     rfs::write(&test_path, test_content).unwrap();
   |                                          ^^^^^^ method not found in `()`

error[E0599]: no method named `unwrap` found for struct `Vec<u8>` in the current scope
##[error]  --> /checkout/tests/run-make/lexer-crlf-line-endings-string-literal-doc-comment/rmake.rs:35:44
   |
35 |     let test_bytes = rfs::read(&test_path).unwrap();
   |                                            ^^^^^^
   |
help: there is a method `swap` with a similar name, but with different arguments
  --> /rustc/95597e848d27a82b8864c677ab807e9f0be1f68c/library/core/src/slice/mod.rs:896:5

---
---- [run-make] tests/run-make/trailing-carriage-return-in-string stdout ----

error: run-make test failed: could not build `rmake.rs` recipe
status: exit status: 1
command: RUSTC_BOOTSTRAP="-1" "/checkout/obj/build/aarch64-unknown-linux-gnu/stage0/bin/rustc" "-o" "/checkout/obj/build/aarch64-unknown-linux-gnu/test/run-make/trailing-carriage-return-in-string/rmake" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release/deps" "-Ldependency=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/release/deps" "--extern" "run_make_support=/checkout/obj/build/aarch64-unknown-linux-gnu/bootstrap-tools/aarch64-unknown-linux-gnu/release/librun_make_support.rlib" "--edition=2021" "/checkout/tests/run-make/trailing-carriage-return-in-string/rmake.rs" "-Cprefer-dynamic" "-Dunused_must_use"
stdout: none
--- stderr -------------------------------
error[E0432]: unresolved import `run_make_support::tmp_dir`
##[error] --> /checkout/tests/run-make/trailing-carriage-return-in-string/rmake.rs:1:42
  |
1 | use run_make_support::{diff, rfs, rustc, tmp_dir};
  |                                          ^^^^^^^ no `tmp_dir` in the root

error[E0599]: no method named `unwrap` found for unit type `()` in the current scope
##[error]  --> /checkout/tests/run-make/trailing-carriage-return-in-string/rmake.rs:14:42
   |
14 |     rfs::write(&test_path, test_content).unwrap();
   |                                          ^^^^^^ method not found in `()`

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0432, E0599.
For more information about an error, try `rustc --explain E0432`.

[jieyouxu]

@rustbot author

[rustbot]

Reminder, once the PR becomes ready for a review, use @rustbot ready.