rust: Upgrade 1.89.0 -> 1.90.0

https://blog.rust-lang.org/2025/09/18/Rust-1.90.0/

* Recent changes in rustc require 'target-c-int-width' to be an integer,
  not a string. This fixes type consistency when generating target specs.
  https://github.com/rust-lang/rust/pull/142352.

* Rebase existing patches with v1.90.0.

* Drop merged patches with rust v1.90.0.
  - backport-fix-test-string-merging.patch
  https://github.com/rust-lang/rust/commit/2d51acd2fbcbadb6f30709c5dd305494d413d388

* The "remote-test-server" bin is now generated in stage1-tools-bin dir
  rather than stage2. Update the test suite accordingly.

  The tests/{assembly/codegen} dirs are renamed to
  tests/{assembly,codegen}-llvm. Update the test suite and
  patches accordingly.
  https://github.com/rust-lang/rust/pull/144249/commits

* Use "//@ ignore-riscv64" tag for tests failing on riscv-64 instead of previous
  "only-<target_arch>" tags.

  Test results summary:

   rust v1.90.0
   +-----------+--------+---------+
   | Machine   | Passed | Ignored |
   +-----------+--------+---------+
   | arm-32    | 29,517 |  1,529  |
   | arm-64    | 29,608 |  1,471  |
   | x86-32    | 29,508 |  1,507  |
   | x86-64    | 29,903 |  1,275  |
   | riscv-64  | 29,584 |  1,494  |
   +-----------+--------+---------+

   Test results difference (1.90 - 1.89):
   +-----------+--------+---------+
   | Machine   | Passed | Ignored |
   +-----------+--------+---------+
   | arm-32    |  +278  |   +61   |
   | arm-64    |  +279  |   +59   |
   | x86-32    |  +277  |   +58   |
   | x86-64    |  +419  |   +50   |
   | riscv-64  |  +280  |   +58   |
   +-----------+--------+---------+

(From OE-Core rev: 86d09ec9cdbcea6e076ebac6e1243f9e20fb4378)

Signed-off-by: Yash Shinde <Yash.Shinde@windriver.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 0 insertions, 27 deletions

diff --git a/meta/recipes-devtools/rust/files/backport-fix-test-string-merging.patch b/meta/recipes-devtools/rust/files/backport-fix-test-string-merging.patch
deleted file mode 100644
index 1e72c100bb..0000000000
--- a/meta/recipes-devtools/rust/files/backport-fix-test-string-merging.patch
+++ /dev/null
@@ -1,27 +0,0 @@
-From 2d51acd2fbcbadb6f30709c5dd305494d413d388 Mon Sep 17 00:00:00 2001
-From: Jens Reidel <adrian@travitia.xyz>
-Date: Fri, 18 Jul 2025 19:44:20 +0200
-Subject: [PATCH] tests: assembly: cstring-merging: Disable GlobalMerge pass
-
-The test relies on LLVM not merging all the globals into one and would
-currently otherwise fail on powerpc64le.
-
-Signed-off-by: Peter Tatrai <Peter.Tatrai@siemens.com>
-Upstream-Status: Backport [https://github.com/rust-lang/rust/commit/2d51acd2fbcbadb6f30709c5dd305494d413d388]
----
- tests/assembly/cstring-merging.rs | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/tests/assembly/cstring-merging.rs b/tests/assembly/cstring-merging.rs
-index f7d0775f7affd..03688e0068b79 100644
---- a/tests/assembly/cstring-merging.rs
-+++ b/tests/assembly/cstring-merging.rs
-@@ -2,7 +2,7 @@
- // other architectures (including ARM and x86-64) use the prefix `.Lanon.`
- //@ only-linux
- //@ assembly-output: emit-asm
--//@ compile-flags: --crate-type=lib -Copt-level=3
-+//@ compile-flags: --crate-type=lib -Copt-level=3 -Cllvm-args=-enable-global-merge=0
- //@ edition: 2024
- 
- use std::ffi::CStr;