### 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
if (!p_op->arguments[1]->is_indexed()) {
				sb = p_op->arguments[1]->get_array_size();
			}
			if (sa != sb) {
				break; 
			}
			DataType na = p_op->arguments[0]->get_datatype();
			DataType nb = p_op->arguments[1]->get_datatype();
			if (na == TYPE_STRUCT || nb == TYPE_STRUCT) {
				valid = p_op->arguments[0]->get_datatype_name() == p_op->arguments[1]->get_datatype_name();
			} else {
				valid = na == nb;
			}
			ret_type = na;
			ret_size = sa;
		} break;
		case OP_ASSIGN_ADD:
		case OP_ASSIGN_SUB:
		case OP_ASSIGN_MUL:
		case OP_ASSIGN_DIV: {
			int sa = 0;
			int sb = 0;
			if (!p_op->arguments[0]->is_indexed()) {
				sa = p_op->arguments[0]->get_array_size();
			}
			if (!p_op->arguments[1]->is_indexed()) {
				sb = p_op->arguments[1]->get_array_size();
			}
			if (sa > 0 || sb > 0) {
				break;