llvm: backport a fix for build with gcc-13

* needed for llvm-native on hosts with gcc-13

(From OE-Core rev: 3382759cb6c5cee42151e72fd94e99a3060317f5)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/recipes-devtools/llvm/llvm/0001-Support-Add-missing-cstdint-header-to-Signals.h.patch

@@ -0,0 +1,31 @@
+From a94bf34221fc4519bd8ec72560c2d363ffe2de4c Mon Sep 17 00:00:00 2001
+From: Sergei Trofimovich <slyich@gmail.com>
+Date: Mon, 23 May 2022 08:03:23 +0100
+Subject: [PATCH] [Support] Add missing <cstdint> header to Signals.h
+
+Without the change llvm build fails on this week's gcc-13 snapshot as:
+
+    [  0%] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Signals.cpp.o
+    In file included from llvm/lib/Support/Signals.cpp:14:
+    llvm/include/llvm/Support/Signals.h:119:8: error: variable or field 'CleanupOnSignal' declared void
+      119 |   void CleanupOnSignal(uintptr_t Context);
+          |        ^~~~~~~~~~~~~~~
+
+Upstream-Status: Backport [llvmorg-15.0.0 ff1681ddb303223973653f7f5f3f3435b48a1983]
+Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
+---
+ llvm/include/llvm/Support/Signals.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/llvm/include/llvm/Support/Signals.h b/llvm/include/llvm/Support/Signals.h
+index 44f5a750ff5c..937e0572d4a7 100644
+--- a/llvm/include/llvm/Support/Signals.h
++++ b/llvm/include/llvm/Support/Signals.h
+@@ -14,6 +14,7 @@
+ #ifndef LLVM_SUPPORT_SIGNALS_H
+ #define LLVM_SUPPORT_SIGNALS_H
+ 
++#include <cstdint>
+ #include <string>
+ 
+ namespace llvm {

meta/recipes-devtools/llvm/llvm_git.bb

@@ -32,6 +32,7 @@ SRC_URI = "git://github.com/llvm/llvm-project.git;branch=${BRANCH};protocol=http
            file://0006-llvm-TargetLibraryInfo-Undefine-libc-functions-if-th.patch;striplevel=2 \
            file://0007-llvm-allow-env-override-of-exe-path.patch;striplevel=2 \
            file://0001-AsmMatcherEmitter-sort-ClassInfo-lists-by-name-as-we.patch;striplevel=2 \
+           file://0001-Support-Add-missing-cstdint-header-to-Signals.h.patch;striplevel=2 \
            "
 
 UPSTREAM_CHECK_GITTAGREGEX = "llvmorg-(?P<pver>\d+(\.\d+)+)"