Rebuild with LLVM 18

Resolves: RHEL-27726

0001-Step-all-bootstrap-cfgs-forward.patch

@@ -0,0 +1,26 @@
+From 9a5034a20ed8b055dc615271f9d9cf27f9e494f0 Mon Sep 17 00:00:00 2001
+From: Mark Rousskov <mark.simulacrum@gmail.com>
+Date: Mon, 5 Feb 2024 07:34:48 -0500
+Subject: [PATCH] Step all bootstrap cfgs forward
+
+This also takes care of other bootstrap-related changes.
+---
+ src/tools/coverage-dump/src/covfun.rs | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/tools/coverage-dump/src/covfun.rs b/src/tools/coverage-dump/src/covfun.rs
+index 3a5866dea3e0..49e3a6ed5838 100644
+--- a/src/tools/coverage-dump/src/covfun.rs
++++ b/src/tools/coverage-dump/src/covfun.rs
+@@ -219,7 +219,7 @@ pub(crate) fn decode(input: u32) -> Option<Self> {
+ enum MappingKind {
+     Code(CovTerm),
+     Gap(CovTerm),
+-    Expansion(u32),
++    Expansion(#[allow(dead_code)] u32),
+     Skip,
+     // Using raw identifiers here makes the dump output a little bit nicer
+     // (via the derived Debug), at the expense of making this tool's source
+-- 
+2.44.0
+

rust.spec

@@ -161,6 +161,9 @@ Patch12:        0001-test-don-t-compress-test-registry-crates.patch
 # https://github.com/rust-lang/rust-clippy/pull/12682
 Patch13:        0001-The-multiple_unsafe_ops_per_block-test-needs-asm.patch
 
+# https://github.com/rust-lang/rust/pull/120676 (partial)
+Patch14:        0001-Step-all-bootstrap-cfgs-forward.patch
+
 ### RHEL-specific patches below ###
 
 # Simple rpm macros for rust-toolset (as opposed to full rust-packaging)
@@ -630,6 +633,7 @@ rm -rf %{wasi_libc_dir}/dlmalloc/
 %patch -P11 -p1
 %patch -P12 -p1 -d src/tools/cargo
 %patch -P13 -p1 -d src/tools/clippy
+%patch -P14 -p1
 
 %if %with disabled_libssh2
 %patch -P100 -p1