### 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
return _make_token(TK_PARENTHESIS_OPEN);
			case ')':
				return _make_token(TK_PARENTHESIS_CLOSE);
			case ',':
				return _make_token(TK_COMMA);
			case ';':
				return _make_token(TK_SEMICOLON);
			case '?':
				return _make_token(TK_QUESTION);
			case ':':
				return _make_token(TK_COLON);
			case '^':
				if (GETCHAR(0) == '=') {
					char_idx++;
					return _make_token(TK_OP_ASSIGN_BIT_XOR);
				}
				return _make_token(TK_OP_BIT_XOR);
			case '~':
				return _make_token(TK_OP_BIT_INVERT);
			case '&': {
				if (GETCHAR(0) == '=') {
					char_idx++;
					return _make_token(TK_OP_ASSIGN_BIT_AND);
				} else if (GETCHAR(0) == '&') {
					char_idx++;
					return _make_token(TK_OP_AND);
				}
				return _make_token(TK_OP_BIT_AND);
			} break;
			case '|': {