### Godot version

4.0.beta14

### System information

windows 10, gles 3, nvidia graphics

### Issue description

SCREEN_TEXTURE  was dropped in beta 14. The suggested replacement is to use ```uniform sampler2D SCREEN_TEXTURE : hint_screen_texture, filter_linear_mipmaps;```, but filter_linear_mipmaps is not recognized as a valid shader type hint and a shader using it fails to compile.

### Steps to reproduce

Create a canvas item shader and use the filter_linear_mipmaps type hint with a sampler2D uniform.

### Minimal reproduction project

N/A
}
			ControlFlowNode *cf = alloc_node<ControlFlowNode>();
			cf->flow_op = FLOW_OP_DEFAULT;
			BlockNode *default_block = alloc_node<BlockNode>();
			default_block->block_type = BlockNode::BLOCK_TYPE_DEFAULT;
			default_block->parent_block = p_block;
			cf->blocks.push_back(default_block);
			p_block->statements.push_back(cf);
			Error err = _parse_block(default_block, p_function_info, false, true, false);
			if (err) {
				return err;
			}
			return OK;
		} else if (tk.type == TK_CF_DO || tk.type == TK_CF_WHILE) {
			
			
			bool is_do = tk.type == TK_CF_DO;
			BlockNode *do_block = nullptr;
			if (is_do) {
				do_block = alloc_node<BlockNode>();
				do_block->parent_block = p_block;
				Error err = _parse_block(do_block, p_function_info, true, true, true);
				if (err) {
					return err;
				}
				tk = _get_token();
				if (tk.type != TK_CF_WHILE) {
					_set_expected_after_error("while", "do");
					return ERR_PARSE_ERROR;
				}