metadata: Remove CrateMetadata::name

It duplicates `CrateRoot::name`

src/librustc_metadata/creader.rs

@@ -112,7 +112,7 @@ fn existing_match(&self, name: Symbol, hash: Option<&Svh>, kind: PathKind)
                       -> Option<CrateNum> {
         let mut ret = None;
         self.cstore.iter_crate_data(|cnum, data| {
-            if data.name != name { return }
+            if data.root.name != name { return }
 
             match hash {
                 Some(hash) if *hash == data.root.hash => { ret = Some(cnum); return }
@@ -252,7 +252,6 @@ fn register_crate(
         });
 
         let cmeta = cstore::CrateMetadata {
-            name: crate_root.name,
             extern_crate: Lock::new(None),
             def_path_table: Lrc::new(def_path_table),
             trait_impls,
@@ -789,7 +788,7 @@ fn inject_sanitizer_runtime(&mut self) {
 
             let mut uses_std = false;
             self.cstore.iter_crate_data(|_, data| {
-                if data.name == sym::std {
+                if data.root.name == sym::std {
                     uses_std = true;
                 }
             });

src/librustc_metadata/cstore.rs

@@ -12,7 +12,6 @@
 use rustc_data_structures::sync::{Lrc, RwLock, Lock};
 use syntax::ast;
 use syntax::ext::base::SyntaxExtension;
-use syntax::symbol::Symbol;
 use syntax_pos;
 
 pub use rustc::middle::cstore::{NativeLibrary, NativeLibraryKind, LinkagePreference};
@@ -45,9 +44,6 @@ pub struct ImportedSourceFile {
 }
 
 pub struct CrateMetadata {
-    /// Original name of the crate.
-    pub name: Symbol,
-
     /// Information about the extern crate that caused this crate to
     /// be loaded. If this is `None`, then the crate was injected
     /// (e.g., by the allocator)

src/librustc_metadata/cstore_impl.rs

@@ -220,7 +220,7 @@ fn into_args(self) -> (DefId, DefId) { (self.0.as_def_id(), self.1) }
         let r = *cdata.dep_kind.lock();
         r
     }
-    crate_name => { cdata.name }
+    crate_name => { cdata.root.name }
     item_children => {
         let mut result = SmallVec::<[_; 8]>::new();
         cdata.each_child_of_item(def_id.index, |child| result.push(child), tcx.sess);
@@ -453,7 +453,7 @@ pub fn load_macro_untracked(&self, id: DefId, sess: &Session) -> LoadedMacro {
         }
 
         let def = data.get_macro(id.index);
-        let macro_full_name = data.def_path(id.index).to_string_friendly(|_| data.name);
+        let macro_full_name = data.def_path(id.index).to_string_friendly(|_| data.root.name);
         let source_name = FileName::Macros(macro_full_name);
 
         let source_file = sess.parse_sess.source_map().new_source_file(source_name, def.body);
@@ -503,7 +503,7 @@ fn item_generics_cloned_untracked(&self, def: DefId, sess: &Session) -> ty::Gene
 
     fn crate_name_untracked(&self, cnum: CrateNum) -> Symbol
     {
-        self.get_crate_data(cnum).name
+        self.get_crate_data(cnum).root.name
     }
 
     fn crate_is_private_dep_untracked(&self, cnum: CrateNum) -> bool {

src/librustc_metadata/decoder.rs

@@ -473,7 +473,7 @@ fn entry(&self, item_id: DefIndex) -> Entry<'tcx> {
             None => {
                 bug!("entry: id not found: {:?} in crate {:?} with number {}",
                      item_id,
-                     self.name,
+                     self.root.name,
                      self.cnum)
             }
             Some(d) => d.decode(self),