Use a safe wrapper around an LLVM FFI function

compiler/rustc_codegen_llvm/src/intrinsic.rs

@@ -649,7 +649,7 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
     fn type_test(&mut self, pointer: Self::Value, typeid: Self::Metadata) -> Self::Value {
         // Test the called operand using llvm.type.test intrinsic. The LowerTypeTests link-time
         // optimization pass replaces calls to this intrinsic with code to test type membership.
-        let typeid = unsafe { llvm::LLVMMetadataAsValue(&self.llcx, typeid) };
+        let typeid = self.get_metadata_value(typeid);
         self.call_intrinsic("llvm.type.test", &[pointer, typeid])
     }
 
@@ -659,7 +659,7 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
         vtable_byte_offset: u64,
         typeid: &'ll Metadata,
     ) -> Self::Value {
-        let typeid = unsafe { llvm::LLVMMetadataAsValue(&self.llcx, typeid) };
+        let typeid = self.get_metadata_value(typeid);
         let vtable_byte_offset = self.const_i32(vtable_byte_offset as i32);
         let type_checked_load =
             self.call_intrinsic("llvm.type.checked.load", &[llvtable, vtable_byte_offset, typeid]);