Auto merge of #33179 - Manishearth:breaking-batch, r=Manishearth

Batch up breaking libsyntax changes

Contains:

 - #33125
 - #33041
 - #33157

cc #31645

Author: bors

src/etc/generate-keyword-tests.py

@@ -34,15 +34,17 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+// compile-flags: -Z parse-only
+
 // This file was auto-generated using 'src/etc/generate-keyword-tests.py %s'
 
 fn main() {
-    let %s = "foo"; //~ error: ident
+    let %s = "foo"; //~ error: expected pattern, found keyword `%s`
 }
 """
 
 test_dir = os.path.abspath(
-    os.path.join(os.path.dirname(__file__), '../test/compile-fail')
+    os.path.join(os.path.dirname(__file__), '../test/parse-fail')
 )
 
 for kw in sys.argv[1:]:
@@ -53,7 +55,7 @@
         os.chmod(test_file, stat.S_IWUSR)
 
     with open(test_file, 'wt') as f:
-        f.write(template % (datetime.datetime.now().year, kw, kw))
+        f.write(template % (datetime.datetime.now().year, kw, kw, kw))
 
     # mark file read-only
     os.chmod(test_file, stat.S_IRUSR | stat.S_IRGRP | stat.S_IROTH)

src/librustc/hir/fold.rs

@@ -18,7 +18,7 @@ use syntax::attr::ThinAttributesExt;
 use hir;
 use syntax::codemap::{respan, Span, Spanned};
 use syntax::ptr::P;
-use syntax::parse::token;
+use syntax::parse::token::keywords;
 use syntax::util::move_map::MoveMap;
 
 pub trait Folder : Sized {
@@ -867,7 +867,7 @@ pub fn noop_fold_crate<T: Folder>(Crate { module, attrs, config, span,
     let config = folder.fold_meta_items(config);
 
     let crate_mod = folder.fold_item(hir::Item {
-        name: token::special_idents::invalid.name,
+        name: keywords::Invalid.name(),
         attrs: attrs,
         id: DUMMY_NODE_ID,
         vis: hir::Public,
@@ -1060,10 +1060,11 @@ pub fn noop_fold_expr<T: Folder>(Expr { id, node, span, attrs }: Expr, folder: &
                           arms.move_map(|x| folder.fold_arm(x)),
                           source)
             }
-            ExprClosure(capture_clause, decl, body) => {
+            ExprClosure(capture_clause, decl, body, fn_decl_span) => {
                 ExprClosure(capture_clause,
                             folder.fold_fn_decl(decl),
-                            folder.fold_block(body))
+                            folder.fold_block(body),
+                            folder.new_span(fn_decl_span))
             }
             ExprBlock(blk) => ExprBlock(folder.fold_block(blk)),
             ExprAssign(el, er) => {