### 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
cf->flow_op = FLOW_OP_FOR;
			BlockNode *init_block = alloc_node<BlockNode>();
			init_block->block_type = BlockNode::BLOCK_TYPE_FOR_INIT;
			init_block->parent_block = p_block;
			init_block->single_statement = true;
			cf->blocks.push_back(init_block);
#ifdef DEBUG_ENABLED
			keyword_completion_context = CF_DATATYPE;
#endif 
			Error err = _parse_block(init_block, p_function_info, true, false, false);
			if (err != OK) {
				return err;
			}
#ifdef DEBUG_ENABLED
			keyword_completion_context = CF_UNSPECIFIED;
#endif 
			BlockNode *condition_block = alloc_node<BlockNode>();
			condition_block->block_type = BlockNode::BLOCK_TYPE_FOR_CONDITION;
			condition_block->parent_block = init_block;
			condition_block->single_statement = true;
			condition_block->use_comma_between_statements = true;
			cf->blocks.push_back(condition_block);
			err = _parse_block(condition_block, p_function_info, true, false, false);
			if (err != OK) {
				return err;
			}
			BlockNode *expression_block = alloc_node<BlockNode>();
			expression_block->block_type = BlockNode::BLOCK_TYPE_FOR_EXPRESSION;
			expression_block->parent_block = init_block;
			expression_block->single_statement = true;