### Godot version

4.0.3

### System information

Win7

### Issue description

![image](https://github.com/godotengine/godot/assets/28286958/abec9d3c-e078-424c-9430-d9fe8897aad6)


### Steps to reproduce

1. Create shader
2. Add uint with hex, e.g. 0xffffu

### Minimal reproduction project

N/A
if (array_size > 0) {
					prepos = _get_tkpos();
					tk = _get_token();
					if (tk.type == TK_OP_ASSIGN) {
						if (is_const) {
							_set_error(RTR("Constants cannot be modified."));
							return nullptr;
						}
						assign_expression = _parse_array_constructor(p_block, p_function_info, data_type, struct_name, array_size);
						if (!assign_expression) {
							return nullptr;
						}
					} else if (tk.type == TK_PERIOD) {
						completion_class = TAG_ARRAY;
						if (p_block != nullptr) {
							p_block->block_tag = SubClassTag::TAG_ARRAY;
						}
						call_expression = _parse_and_reduce_expression(p_block, p_function_info);
						if (p_block != nullptr) {
							p_block->block_tag = SubClassTag::TAG_GLOBAL;
						}
						if (!call_expression) {
							return nullptr;
						}
					} else if (tk.type == TK_BRACKET_OPEN) { 
						index_expression = _parse_and_reduce_expression(p_block, p_function_info);
						if (!index_expression) {
							return nullptr;
						}
						if (index_expression->get_array_size() != 0 || (index_expression->get_datatype() != TYPE_INT && index_expression->get_datatype() != TYPE_UINT)) {