fix fallout in tests

src/librustc_expand/mut_visit/tests.rs

@@ -1,8 +1,8 @@
 use crate::tests::{matches_codepattern, string_to_crate};
 
+use rustc_ast_pretty::pprust;
 use syntax::ast::{self, Ident};
 use syntax::mut_visit::{self, MutVisitor};
-use syntax::print::pprust;
 use syntax::with_default_globals;
 
 // This version doesn't care about getting comments or doc-strings in.

src/librustc_expand/parse/lexer/tests.rs

@@ -1,10 +1,10 @@
 use rustc_data_structures::sync::Lrc;
 use rustc_errors::{emitter::EmitterWriter, Handler};
 use rustc_parse::lexer::StringReader;
+use rustc_session::parse::ParseSess;
 use rustc_span::source_map::{FilePathMapping, SourceMap};
 use rustc_span::symbol::Symbol;
 use rustc_span::{BytePos, Span};
-use syntax::sess::ParseSess;
 use syntax::token::{self, Token, TokenKind};
 use syntax::util::comments::is_doc_comment;
 use syntax::with_default_globals;

src/librustc_expand/parse/tests.rs

@@ -1,14 +1,14 @@
 use crate::tests::{matches_codepattern, string_to_stream, with_error_checking_parse};
 
+use rustc_ast_pretty::pprust::item_to_string;
 use rustc_errors::PResult;
 use rustc_parse::new_parser_from_source_str;
+use rustc_session::parse::ParseSess;
 use rustc_span::source_map::FilePathMapping;
 use rustc_span::symbol::{kw, sym, Symbol};
 use rustc_span::{BytePos, FileName, Pos, Span};
 use syntax::ast::{self, Name, PatKind};
-use syntax::print::pprust::item_to_string;
 use syntax::ptr::P;
-use syntax::sess::ParseSess;
 use syntax::token::{self, Token};
 use syntax::tokenstream::{DelimSpan, TokenStream, TokenTree};
 use syntax::visit;

src/librustc_expand/tests.rs

@@ -1,8 +1,8 @@
 use rustc_parse::{new_parser_from_source_str, parser::Parser, source_file_to_stream};
+use rustc_session::parse::ParseSess;
 use rustc_span::source_map::{FilePathMapping, SourceMap};
 use rustc_span::{BytePos, MultiSpan, Span};
 use syntax::ast;
-use syntax::sess::ParseSess;
 use syntax::tokenstream::TokenStream;
 use syntax::with_default_globals;
 

src/test/ui-fulldeps/auxiliary/issue-40001-plugin.rs

@@ -1,20 +1,21 @@
 #![feature(box_syntax, plugin, plugin_registrar, rustc_private)]
 #![crate_type = "dylib"]
 
+extern crate rustc_ast_pretty;
 extern crate rustc_driver;
 extern crate rustc_hir;
 #[macro_use] extern crate rustc_lint;
 #[macro_use] extern crate rustc_session;
 extern crate rustc_span;
 extern crate syntax;
 
+use rustc_ast_pretty::pprust;
 use rustc_hir::intravisit;
 use rustc_hir as hir;
 use rustc_hir::Node;
 use rustc_lint::{LateContext, LintPass, LintArray, LateLintPass, LintContext};
 use rustc_driver::plugin::Registry;
 use rustc_span::source_map;
-use syntax::print::pprust;
 
 #[plugin_registrar]
 pub fn plugin_registrar(reg: &mut Registry) {

src/test/ui-fulldeps/mod_dir_path_canonicalized.rs

@@ -6,12 +6,13 @@
 
 extern crate syntax;
 extern crate rustc_parse;
+extern crate rustc_session;
 extern crate rustc_span;
 
 use rustc_parse::new_parser_from_file;
+use rustc_session::parse::ParseSess;
 use rustc_span::source_map::FilePathMapping;
 use std::path::Path;
-use syntax::sess::ParseSess;
 
 #[path = "mod_dir_simple/test.rs"]
 mod gravy;

src/test/ui-fulldeps/pprust-expr-roundtrip.rs

@@ -19,19 +19,21 @@
 
 #![feature(rustc_private)]
 
+extern crate rustc_ast_pretty;
 extern crate rustc_data_structures;
 extern crate syntax;
 extern crate rustc_parse;
+extern crate rustc_session;
 extern crate rustc_span;
 
+use rustc_ast_pretty::pprust;
 use rustc_data_structures::thin_vec::ThinVec;
 use rustc_parse::new_parser_from_source_str;
+use rustc_session::parse::ParseSess;
 use rustc_span::source_map::{Spanned, DUMMY_SP, FileName};
 use rustc_span::source_map::FilePathMapping;
 use syntax::ast::*;
-use syntax::sess::ParseSess;
 use syntax::mut_visit::{self, MutVisitor, visit_clobber};
-use syntax::print::pprust;
 use syntax::ptr::P;
 
 fn parse_expr(ps: &ParseSess, src: &str) -> Option<P<Expr>> {