Auto merge of #193 - servo:Hasher, r=SimonSapin

atom: Use the same hash everywhere.

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Author: bors-servo

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "string_cache"
-version = "0.6.1"  # Also update README.md when making a semver-breaking change
+version = "0.6.2"  # Also update README.md when making a semver-breaking change
 authors = [ "The Servo Project Developers" ]
 description = "A string interning library for Rust, developed as part of the Servo project."
 license = "MIT / Apache-2.0"

src/atom.rs

@@ -268,7 +268,7 @@ impl<Static: StaticAtomSet> Default for Atom<Static> {
 impl<Static: StaticAtomSet> Hash for Atom<Static> {
     #[inline]
     fn hash<H>(&self, state: &mut H) where H: Hasher {
-        self.unsafe_data.hash(state)
+        state.write_u32(self.get_hash())
     }
 }