### 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
}
										}
										b = b->parent_block;
									}
									if (!valid) {
										_set_error(vformat(RTR("Argument %d of function '%s' can only take a local variable, array, or member."), arg_idx + 1, String(name)));
										return false;
									}
								}
							}
						}
						outarg_idx++;
					}
					
					for (int i = 0; i < argcount; i++) {
						if (get_scalar_type(args[i]) != args[i] || args[i] == builtin_func_defs[idx].args[i] || p_func->arguments[i + 1]->type != Node::TYPE_CONSTANT) {
							
							continue;
						}
						
						ConstantNode *constant = static_cast<ConstantNode *>(p_func->arguments[i + 1]);
						ConstantNode *conversion = alloc_node<ConstantNode>();
						conversion->datatype = builtin_func_defs[idx].args[i];
						conversion->values.resize(1);
						convert_constant(constant, builtin_func_defs[idx].args[i], conversion->values.ptrw());
						p_func->arguments.write[i + 1] = conversion;
					}
					if (r_ret_type) {
						*r_ret_type = builtin_func_defs[idx].rettype;
					}