use fmt_macros as parse;
+use rustc_ast::ast;
+use rustc_ast::ptr::P;
+use rustc_ast::token;
+use rustc_ast::tokenstream::TokenStream;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_errors::{pluralize, Applicability, DiagnosticBuilder};
use rustc_expand::base::{self, *};
use rustc_span::symbol::{sym, Symbol};
use rustc_span::{MultiSpan, Span};
-use syntax::ast;
-use syntax::ptr::P;
-use syntax::token;
-use syntax::tokenstream::TokenStream;
use std::borrow::Cow;
use std::collections::hash_map::Entry;