Use empty array for wrapper methods (case 1073634)

Wrapper methods should not be exposed to user code but in some cases
they end up in StackFrame's. Return empty parameter array
in these cases since metadata code cannot handle wrapper methods.

Author: joncham

mono/metadata/reflection.c

@@ -1087,6 +1087,15 @@ mono_param_get_objects_internal (MonoDomain *domain, MonoMethod *method, MonoCla
 		return res;
 	}
 
+	/* UNITY: wrapper methods are being captured in callstacks, even thought users should not encounter them.
+	 * The logic in param_objects_construct cannot handle this. Just return empty array (case 1073634) */
+	if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
+		MonoArrayHandle res = mono_array_new_handle (domain, mono_class_get_mono_parameter_info_class (), 0, error);
+		goto_if_nok (error, fail);
+
+		return res;
+	}
+
 	/* Note: the cache is based on the address of the signature into the method
 	 * since we already cache MethodInfos with the method as keys.
 	 */