syntax: Clean out obsolete syntax parsing

All of these features have been obsolete since February 2014, where most have
been obsolete since 2013. There shouldn't be any more need to keep around the
parser hacks after this length of time.

1 files changed, 34 insertions, 36 deletions

diff --git a/src/libsyntax/parse/token.rs b/src/libsyntax/parse/token.rs
index 8758f109042..17ce03ba213 100644
--- a/src/libsyntax/parse/token.rs
+++ b/src/libsyntax/parse/token.rs
@@ -67,7 +67,6 @@ pub enum Token {
     MOD_SEP,
     RARROW,
     LARROW,
-    DARROW,
     FAT_ARROW,
     LPAREN,
     RPAREN,
@@ -183,7 +182,6 @@ pub fn to_str(t: &Token) -> StrBuf {
       MOD_SEP => "::".to_strbuf(),
       RARROW => "->".to_strbuf(),
       LARROW => "<-".to_strbuf(),
-      DARROW => "<->".to_strbuf(),
       FAT_ARROW => "=>".to_strbuf(),
       LPAREN => "(".to_strbuf(),
       RPAREN => ")".to_strbuf(),
@@ -449,45 +447,45 @@ declare_special_idents_and_keywords! {
         'strict:
         (9,                          As,         "as");
         (10,                         Break,      "break");
-        (11,                         Const,      "const");
-        (12,                         Crate,      "crate");
-        (13,                         Else,       "else");
-        (14,                         Enum,       "enum");
-        (15,                         Extern,     "extern");
-        (16,                         False,      "false");
-        (17,                         Fn,         "fn");
-        (18,                         For,        "for");
-        (19,                         If,         "if");
-        (20,                         Impl,       "impl");
-        (21,                         In,         "in");
-        (22,                         Let,        "let");
-        (23,                         Loop,       "loop");
-        (24,                         Match,      "match");
-        (25,                         Mod,        "mod");
-        (26,                         Mut,        "mut");
-        (27,                         Once,       "once");
-        (28,                         Pub,        "pub");
-        (29,                         Ref,        "ref");
-        (30,                         Return,     "return");
+        (11,                         Crate,      "crate");
+        (12,                         Else,       "else");
+        (13,                         Enum,       "enum");
+        (14,                         Extern,     "extern");
+        (15,                         False,      "false");
+        (16,                         Fn,         "fn");
+        (17,                         For,        "for");
+        (18,                         If,         "if");
+        (19,                         Impl,       "impl");
+        (20,                         In,         "in");
+        (21,                         Let,        "let");
+        (22,                         Loop,       "loop");
+        (23,                         Match,      "match");
+        (24,                         Mod,        "mod");
+        (25,                         Mut,        "mut");
+        (26,                         Once,       "once");
+        (27,                         Pub,        "pub");
+        (28,                         Ref,        "ref");
+        (29,                         Return,     "return");
         // Static and Self are also special idents (prefill de-dupes)
         (super::STATIC_KEYWORD_NAME, Static,     "static");
         (super::SELF_KEYWORD_NAME,   Self,       "self");
-        (31,                         Struct,     "struct");
-        (32,                         Super,      "super");
-        (33,                         True,       "true");
-        (34,                         Trait,      "trait");
-        (35,                         Type,       "type");
-        (36,                         Unsafe,     "unsafe");
-        (37,                         Use,        "use");
-        (38,                         Virtual,    "virtual");
-        (39,                         While,      "while");
-        (40,                         Continue,   "continue");
-        (41,                         Proc,       "proc");
-        (42,                         Box,        "box");
+        (30,                         Struct,     "struct");
+        (31,                         Super,      "super");
+        (32,                         True,       "true");
+        (33,                         Trait,      "trait");
+        (34,                         Type,       "type");
+        (35,                         Unsafe,     "unsafe");
+        (36,                         Use,        "use");
+        (37,                         Virtual,    "virtual");
+        (38,                         While,      "while");
+        (39,                         Continue,   "continue");
+        (40,                         Proc,       "proc");
+        (41,                         Box,        "box");
 
         'reserved:
-        (43,                         Alignof,    "alignof");
-        (44,                         Be,         "be");
+        (42,                         Alignof,    "alignof");
+        (43,                         Be,         "be");
+        (44,                         Const,      "const");
         (45,                         Offsetof,   "offsetof");
         (46,                         Priv,       "priv");
         (47,                         Pure,       "pure");