### 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
}
			} while (tk.type == TK_COMMA); 
#ifdef DEBUG_ENABLED
			keyword_completion_context = CF_BLOCK;
#endif 
			p_block->statements.push_back(static_cast<Node *>(vdnode));
		} else if (tk.type == TK_CURLY_BRACKET_OPEN) {
			
			BlockNode *block = alloc_node<BlockNode>();
			block->parent_block = p_block;
			if (_parse_block(block, p_function_info, false, p_can_break, p_can_continue) != OK) {
				return ERR_PARSE_ERROR;
			}
			p_block->statements.push_back(block);
		} else if (tk.type == TK_CF_IF) {
			
			tk = _get_token();
			if (tk.type != TK_PARENTHESIS_OPEN) {
				_set_expected_after_error("(", "if");
				return ERR_PARSE_ERROR;
			}
			ControlFlowNode *cf = alloc_node<ControlFlowNode>();
			cf->flow_op = FLOW_OP_IF;
#ifdef DEBUG_ENABLED
			keyword_completion_context = CF_IF_DECL;
#endif 
			Node *n = _parse_and_reduce_expression(p_block, p_function_info);
			if (!n) {
				return ERR_PARSE_ERROR;
			}