Rollup merge of #87092 - ricobbe:fix-raw-dylib-multiple-definitions, r=petrochenkov

Remove nondeterminism in multiple-definitions test

Compare all fields in `DllImport` when sorting to avoid nondeterminism in the error for multiple inconsistent definitions of an extern function.  Restore the multiple-definitions test.

Resolves #87084.

src/lib.rs

@@ -221,9 +221,7 @@ impl CodegenBackend for CraneliftCodegenBackend {
             sess,
             &codegen_results,
             outputs,
-        );
-
-        Ok(())
+        )
     }
 }