Rollup merge of #121389 - klensy:llvm-warn-fix, r=nikic

llvm-wrapper: fix few warnings

Two fixes: first one is simple unsigned -> uint64_t, but how second one is more subtile, see commit description.

compiler/rustc_codegen_llvm/src/llvm/diagnostic.rs

@@ -123,7 +123,7 @@ impl SrcMgrDiagnostic {
 #[derive(Clone)]
 pub struct InlineAsmDiagnostic {
     pub level: super::DiagnosticLevel,
-    pub cookie: c_uint,
+    pub cookie: u64,
     pub message: String,
     pub source: Option<(String, Vec<InnerSpan>)>,
 }
@@ -149,7 +149,7 @@ impl InlineAsmDiagnostic {
         let smdiag = SrcMgrDiagnostic::unpack(super::LLVMRustGetSMDiagnostic(di, &mut cookie));
         InlineAsmDiagnostic {
             level: smdiag.level,
-            cookie,
+            cookie: cookie.into(),
             message: smdiag.message,
             source: smdiag.source,
         }

compiler/rustc_codegen_llvm/src/llvm/ffi.rs

@@ -2256,7 +2256,7 @@ extern "C" {
     pub fn LLVMRustUnpackInlineAsmDiagnostic<'a>(
         DI: &'a DiagnosticInfo,
         level_out: &mut DiagnosticLevel,
-        cookie_out: &mut c_uint,
+        cookie_out: &mut u64,
         message_out: &mut Option<&'a Twine>,
     );