Update test suite to nightly-2021-07-09

Author: dtolnay

benches/file.rs

@@ -19,7 +19,7 @@ use std::fs;
 use std::str::FromStr;
 use test::Bencher;
 
-const FILE: &str = "tests/rust/src/libcore/str/mod.rs";
+const FILE: &str = "tests/rust/library/core/src/str/mod.rs";
 
 #[bench]
 fn parse_file(b: &mut Bencher) {

benches/rust.rs

@@ -58,7 +58,7 @@ mod librustc_parse {
             }
         }
 
-        rustc_span::with_session_globals(Edition::Edition2018, || {
+        rustc_span::create_session_if_not_set_then(Edition::Edition2018, |_| {
             let cm = Lrc::new(SourceMap::new(FilePathMapping::empty()));
             let emitter = Box::new(SilentEmitter);
             let handler = Handler::with_emitter(false, None, emitter);

tests/repo/mod.rs

@@ -26,6 +26,9 @@ static EXCLUDE: &[&str] = &[
     "src/test/ui/issues/issue-34074.rs",
     "src/test/ui/proc-macro/trait-fn-args-2015.rs",
 
+    // Excessive nesting
+    "src/test/ui/issues/issue-74564-if-expr-stack-overflow.rs",
+
     // Not actually test cases
     "src/test/rustdoc-ui/test-compile-fail2.rs",
     "src/test/rustdoc-ui/test-compile-fail3.rs",

tests/test_precedence.rs

@@ -151,7 +151,7 @@ fn test_expressions(edition: Edition, exprs: Vec<syn::Expr>) -> (usize, usize) {
     let mut passed = 0;
     let mut failed = 0;
 
-    rustc_span::with_session_globals(edition, || {
+    rustc_span::create_session_if_not_set_then(edition, |_| {
         for expr in exprs {
             let raw = quote!(#expr).to_string();
 
@@ -246,6 +246,7 @@ fn librustc_brackets(mut librustc_expr: P<ast::Expr>) -> Option<P<ast::Expr>> {
                     fields,
                     rest,
                 } = expr.deref_mut();
+                vis.visit_qself(qself);
                 vis.visit_path(path);
                 fields.flat_map_in_place(|field| flat_map_field(field, vis));
                 if let StructRest::Base(rest) = rest {

tests/test_round_trip.rs

@@ -85,7 +85,7 @@ fn test(path: &Path, failed: &AtomicUsize, abort_after: usize) {
     let back = quote!(#krate).to_string();
     let edition = repo::edition(path).parse().unwrap();
 
-    rustc_span::with_session_globals(edition, || {
+    rustc_span::create_session_if_not_set_then(edition, |_| {
         let equal = match panic::catch_unwind(|| {
             let sess = ParseSess::new(FilePathMapping::empty());
             let before = match librustc_parse(content, &sess) {