Don't cache IHostApplication::getName()

As it turns out there are only two or three functions where we can do
this. It also breaks logging, and this function will probably only be
called once anyways. More consistency is always better.

src/plugin/bridges/vst3-impls/plugin-factory.h

@@ -28,6 +28,11 @@ class YaPluginFactoryImpl : public YaPluginFactory {
                                       void** obj) override;
     tresult PLUGIN_API setHostContext(Steinberg::FUnknown* context) override;
 
+    // The following pointers are cast from `host_context` if `setHostContext()`
+    // has been called
+
+    Steinberg::FUnknownPtr<Steinberg::Vst::IHostApplication> host_application;
+
    private:
     Vst3PluginBridge& bridge;