Add evmc_set_tracer helper

include/evmc/helpers.h

@@ -41,6 +41,19 @@ static inline int evmc_set_option(struct evmc_instance* instance,
     return 0;
 }
 
+/**
+ * Sets the tracer callback for the VM instance, if the feature is supported by the VM.
+ *
+ * @see evmc_set_tracer_fn
+ */
+static inline void evmc_set_tracer(struct evmc_instance* instance,
+                                   evmc_trace_callback callback,
+                                   struct evmc_tracer_context* context)
+{
+    if (instance->set_tracer)
+        instance->set_tracer(instance, callback, context);
+}
+
 /**
  * Executes code in the VM instance.
  *