### 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
member_type = TYPE_FLOAT;
									break;
								case TYPE_IVEC2:
									member_type = TYPE_INT;
									break;
								case TYPE_UVEC2:
									member_type = TYPE_UINT;
									break;
								case TYPE_MAT2:
									member_type = TYPE_VEC2;
									break;
								default:
									break;
							}
							break;
						case TYPE_BVEC3:
						case TYPE_VEC3:
						case TYPE_IVEC3:
						case TYPE_UVEC3:
						case TYPE_MAT3:
							if (index->type == Node::TYPE_CONSTANT) {
								uint32_t index_constant = static_cast<ConstantNode *>(index)->values[0].uint;
								if (index_constant >= 3) {
									_set_error(vformat(RTR("Index [%d] out of range [%d..%d]."), index_constant, 0, 2));
									return nullptr;
								}
							}
							switch (expr->get_datatype()) {
								case TYPE_BVEC3:
									member_type = TYPE_BOOL;