### 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 {
					HashSet<int> constants;
					for (int i = 0; i < switch_block->statements.size(); i++) { 
						ControlFlowNode *flow = static_cast<ControlFlowNode *>(switch_block->statements[i]);
						if (flow) {
							if (flow->flow_op == FLOW_OP_CASE) {
								if (flow->expressions[0]->type == Node::TYPE_CONSTANT) {
									ConstantNode *cn = static_cast<ConstantNode *>(flow->expressions[0]);
									if (!cn || cn->values.is_empty()) {
										return ERR_PARSE_ERROR;
									}
									if (constants.has(cn->values[0].sint)) {
										_set_error(vformat(RTR("Duplicated case label: %d."), cn->values[0].sint));
										return ERR_PARSE_ERROR;
									}
									constants.insert(cn->values[0].sint);
								} else if (flow->expressions[0]->type == Node::TYPE_VARIABLE) {
									VariableNode *vn = static_cast<VariableNode *>(flow->expressions[0]);
									if (!vn) {
										return ERR_PARSE_ERROR;
									}
									ConstantNode::Value v;
									_find_identifier(p_block, false, p_function_info, vn->name, nullptr, nullptr, nullptr, nullptr, nullptr, &v);
									if (constants.has(v.sint)) {
										_set_error(vformat(RTR("Duplicated case label: %d."), v.sint));
										return ERR_PARSE_ERROR;
									}
									constants.insert(v.sint);
								}
							} else if (flow->flow_op == FLOW_OP_DEFAULT) {