### 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
break;
										} else if (curly && tk.type == TK_CURLY_BRACKET_CLOSE) {
											decl.initializer.push_back(n);
											break;
										} else {
											if (curly) {
												_set_expected_error("}", ",");
											} else {
												_set_expected_error(")", ",");
											}
											return ERR_PARSE_ERROR;
										}
									}
									if (unknown_size) {
										decl.size = decl.initializer.size();
										constant.array_size = decl.initializer.size();
									} else if (decl.initializer.size() != constant.array_size) {
										_set_error(RTR("Array size mismatch."));
										return ERR_PARSE_ERROR;
									}
								}
								array_size = constant.array_size;
								ConstantNode *expr = memnew(ConstantNode);
								expr->datatype = constant.type;
								expr->struct_name = constant.type_str;
								expr->array_size = constant.array_size;
								expr->array_declarations.push_back(decl);
								constant.initializer = static_cast<ConstantNode *>(expr);
							} else {
#ifdef DEBUG_ENABLED