Update to rustc 1.9.0-nightly (6d215fe 2016-03-14)

Author: Manishearth

Cargo.toml

@@ -19,7 +19,7 @@ plugin = true
 
 [dependencies]
 regex-syntax = "0.3.0"
-regex_macros = { version = "0.1.28", optional = true }
+regex_macros = { version = "0.1.33", optional = true }
 semver = "0.2.1"
 toml = "0.1"
 unicode-normalization = "0.1"

src/lib.rs

@@ -35,7 +35,7 @@ extern crate semver;
 extern crate regex_syntax;
 
 extern crate rustc_plugin;
-
+extern crate rustc_const_eval;
 use rustc_plugin::Registry;
 
 pub mod consts;