macro_literal_matcher: fixes per petrochenkov's review

Author: da-x

src/libsyntax/ext/tt/macro_rules.rs

@@ -1033,9 +1033,9 @@ fn is_legal_fragment_specifier(_sess: &ParseSess,
                                frag_name: &str,
                                _frag_span: Span) -> bool {
     /*
-     * If new fragmnet specifiers are invented in nightly, `_sess`,
-     * `_features`, `_attrs`, and `_frag_span` will be useful for
-     * here for checking against feature gates. See past versions of
+     * If new fragment specifiers are invented in nightly, `_sess`,
+     * `_features`, `_attrs`, and `_frag_span` will be useful here
+     * for checking against feature gates. See past versions of
      * this function.
      */
     match frag_name {

src/test/run-pass/issues/issue-52169.rs

@@ -9,7 +9,6 @@
 // except according to those terms.
 
 // run-pass
-#![cfg_attr(stage0, feature(macro_literal_matcher))]
 
 macro_rules! a {
     ($i:literal) => { "right" };

src/test/run-pass/macros/macro-literal.rs

@@ -9,7 +9,6 @@
 // except according to those terms.
 
 // run-pass
-#![cfg_attr(stage0, feature(macro_literal_matcher))]
 
 macro_rules! mtester {
     ($l:literal) => {