### Tested versions

- Reproducible in: 4.2.1 Stable
- Testing working functionality in: 4.2 Stable and 4.1 Stable

### System information

Windows 11 - Godot v4.2.1-stable - Vulkan (Forward+)

### Issue description

I have a timer as shown in the attached image. When I tried to drag the timer to the script and use the dot notation to autocomplete the in-built functions of the Timer class, I didn't get suggestions.

While in v4.1 opening the same project gave intellisense.
![image](https://github.com/godotengine/godot/assets/29101013/5e5088d9-8e61-4d4b-a5b4-8deb37cd915b)


### Steps to reproduce

1. Create a Timer
2. Drag and drop in the gdscript editor.
3. Try to invoke the start method.

### Minimal reproduction project (MRP)

[Test DnD.zip](https://github.com/godotengine/godot/files/13658039/Test.DnD.zip)

r_result.type = ScriptLanguage::LOOKUP_RESULT_CLASS;
								r_result.class_name = obj->get_class();
							}
							
							if (r_result.class_name.begins_with("_")) {
								r_result.class_name = r_result.class_name.substr(1);
							}
							return OK;
						}
					} else {
						/*
						// Because get_integer_constant_enum and get_integer_constant don't work on @GlobalScope
						// We cannot determine the exact nature of the identifier here
						// Otherwise these codes would work
						StringName enumName = ClassDB::get_integer_constant_enum("@GlobalScope", p_symbol, true);
						if (enumName != nullptr) {
							r_result.type = ScriptLanguage::LOOKUP_RESULT_CLASS_ENUM;
							r_result.class_name = "@GlobalScope";
							r_result.class_member = enumName;
							return OK;
						}
						else {
							r_result.type = ScriptLanguage::LOOKUP_RESULT_CLASS_CONSTANT;
							r_result.class_name = "@GlobalScope";
							r_result.class_member = p_symbol;
							return OK;
						}*/
						r_result.type = ScriptLanguage::LOOKUP_RESULT_CLASS_TBD_GLOBALSCOPE;
						r_result.class_name = "@GlobalScope";
						r_result.class_member = p_symbol;