### Godot version

4.0 beta 10

### System information

Windows 10

### Issue description

Godot crashes when i accidently name 2 items in an enum the same

EDIT:
The editor freeze for some seconds, then both editor- and console-window dissapear

### Steps to reproduce

Write

```gdscript
enum {
    A,
}
```

and then add a second line with another A:

```gdscript
enum {
    A,
    A # <- crash
}
```

Does not always immediatly happen if i copy&paste items.
Does not happen when i change the script in another editor and open the script in Godot.

### Minimal reproduction project

[enum.zip](https://github.com/godotengine/godot/files/10313759/enum.zip)

case GDScriptParser::Node::ARRAY:
		case GDScriptParser::Node::ASSIGNMENT:
		case GDScriptParser::Node::AWAIT:
		case GDScriptParser::Node::BINARY_OPERATOR:
		case GDScriptParser::Node::CALL:
		case GDScriptParser::Node::CAST:
		case GDScriptParser::Node::DICTIONARY:
		case GDScriptParser::Node::GET_NODE:
		case GDScriptParser::Node::IDENTIFIER:
		case GDScriptParser::Node::LAMBDA:
		case GDScriptParser::Node::LITERAL:
		case GDScriptParser::Node::PRELOAD:
		case GDScriptParser::Node::SELF:
		case GDScriptParser::Node::SUBSCRIPT:
		case GDScriptParser::Node::TERNARY_OPERATOR:
		case GDScriptParser::Node::UNARY_OPERATOR:
			reduce_expression(static_cast<GDScriptParser::ExpressionNode *>(p_node), p_is_root);
			break;
		case GDScriptParser::Node::BREAK:
		case GDScriptParser::Node::BREAKPOINT:
		case GDScriptParser::Node::CONTINUE:
		case GDScriptParser::Node::ENUM:
		case GDScriptParser::Node::FUNCTION:
		case GDScriptParser::Node::PASS:
		case GDScriptParser::Node::SIGNAL:
			
			break;
	}
}
void GDScriptAnalyzer::resolve_annotation(GDScriptParser::AnnotationNode *p_annotation) {