### 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 {
										repeated = true;
									}
									break;
								default:
									ok = false;
									break;
							}
						}
					} break;
					case TYPE_BVEC4:
					case TYPE_IVEC4:
					case TYPE_UVEC4:
					case TYPE_VEC4: {
						int l = ident.length();
						if (l == 1) {
							member_type = DataType(dt - 3);
						} else if (l == 2) {
							member_type = DataType(dt - 2);
						} else if (l == 3) {
							member_type = DataType(dt - 1);
						} else if (l == 4) {
							member_type = dt;
						} else {
							ok = false;
							break;
						}
						const char32_t *c = ident.ptr();
						for (int i = 0; i < l; i++) {
							switch (c[i]) {