### 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
}
						decl.size = array_size;
						fixed_array_size = true;
						tk = _get_token();
					}
				}
				if (tk.type != TK_IDENTIFIER) {
					_set_error(RTR("Expected an identifier."));
					return ERR_PARSE_ERROR;
				}
				StringName name = tk.text;
				ShaderLanguage::IdentifierType itype;
				if (_find_identifier(p_block, true, p_function_info, name, (ShaderLanguage::DataType *)nullptr, &itype)) {
					if (itype != IDENTIFIER_FUNCTION) {
						_set_redefinition_error(String(name));
						return ERR_PARSE_ERROR;
					}
				}
				decl.name = name;
#ifdef DEBUG_ENABLED
				if (check_warnings && HAS_WARNING(ShaderWarning::UNUSED_LOCAL_VARIABLE_FLAG) && p_block) {
					FunctionNode *parent_function = nullptr;
					{
						BlockNode *block = p_block;
						while (block && !block->parent_function) {
							block = block->parent_block;
						}
						parent_function = block->parent_function;
					}
					if (parent_function) {