### 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
} else if (p_func->arguments[arg_idx + 1]->type == Node::TYPE_MEMBER) {
										Node *n = static_cast<const MemberNode *>(p_func->arguments[arg_idx + 1])->owner;
										while (n->type == Node::TYPE_MEMBER) {
											n = static_cast<const MemberNode *>(n)->owner;
										}
										if (n->type != Node::TYPE_VARIABLE && n->type != Node::TYPE_ARRAY) {
											_set_error(vformat(RTR("Argument %d of function '%s' is not a variable, array, or member."), arg_idx + 1, String(name)));
											return false;
										}
										if (n->type == Node::TYPE_VARIABLE) {
											var_name = static_cast<const VariableNode *>(n)->name;
										} else { 
											var_name = static_cast<const ArrayNode *>(n)->name;
										}
									} else { 
										var_name = static_cast<const VariableNode *>(p_func->arguments[arg_idx + 1])->name;
									}
									const BlockNode *b = p_block;
									bool valid = false;
									while (b) {
										if (b->variables.has(var_name) || p_function_info.built_ins.has(var_name)) {
											valid = true;
											break;
										}
										if (b->parent_function) {
											for (int i = 0; i < b->parent_function->arguments.size(); i++) {
												if (b->parent_function->arguments[i].name == var_name) {
													valid = true;
													break;
												}