auto merge of #15377 : alexcrichton/rust/rollup, r=alexcrichton

Closes #15276 (Guide: if)
Closes #15280 (std::os - Add join_paths, make setenv non-utf8 capable)
Closes #15314 (Guide: functions)
Closes #15327 (Simplify PatIdent to contain an Ident rather than a Path)
Closes #15340 (Guide: add mutable binding section)
Closes #15342 (Fix ICE with nested macro_rules!-style macros)
Closes #15350 (Remove duplicated slash in install script path)
Closes #15351 (correct a few spelling mistakes in the tutorial)
Closes #15352 (librustc: Have the kind checker check sub-bounds in trait casts.)
Closes #15359 (Fix spelling errors.)
Closes #15361 (Rename set_broadast() to set_broadcast().)
Closes #15366 (Simplify creating a parser from a token tree)
Closes #15367 (Add examples for StrVector methods)
Closes #15372 (Vec::grow should use reserve_additional, Vec::reserve should check against capacity)
Closes #15373 (Fix minor issues in the documentation of libtime.)

1 files changed, 1 insertions, 6 deletions

diff --git a/src/libhexfloat/lib.rs b/src/libhexfloat/lib.rs
index 1b43f236e69..369de484e8e 100644
--- a/src/libhexfloat/lib.rs
+++ b/src/libhexfloat/lib.rs
@@ -54,7 +54,6 @@ use syntax::codemap::{Span, mk_sp};
 use syntax::ext::base;
 use syntax::ext::base::{ExtCtxt, MacExpr};
 use syntax::ext::build::AstBuilder;
-use syntax::parse;
 use syntax::parse::token;
 use rustc::plugin::Registry;
 
@@ -167,11 +166,7 @@ struct Ident {
 
 fn parse_tts(cx: &ExtCtxt,
              tts: &[ast::TokenTree]) -> (Gc<ast::Expr>, Option<Ident>) {
-    let p = &mut parse::new_parser_from_tts(cx.parse_sess(),
-                                            cx.cfg(),
-                                            tts.iter()
-                                               .map(|x| (*x).clone())
-                                               .collect());
+    let p = &mut cx.new_parser_from_tts(tts);
     let ex = p.parse_expr();
     let id = if p.token == token::EOF {
         None