rustc_metadata: Rename schema to rmeta

And change `rmeta.rs` to `rmeta/mod.rs`

src/librustc_metadata/creader.rs

@@ -2,7 +2,7 @@
 
 use crate::cstore::{self, CStore, MetadataBlob};
 use crate::locator::{self, CratePaths};
-use crate::schema::{CrateRoot, CrateDep};
+use crate::rmeta::{CrateRoot, CrateDep};
 use rustc_data_structures::sync::{Lock, Once, AtomicCell};
 
 use rustc::hir::def_id::CrateNum;

src/librustc_metadata/cstore.rs

@@ -1,7 +1,7 @@
 // The crate store - a central repo for information collected about external
 // crates and libraries
 
-use crate::schema;
+use crate::rmeta;
 use rustc::dep_graph::DepNodeIndex;
 use rustc::hir::def_id::{CrateNum, DefIndex};
 use rustc::hir::map::definitions::DefPathTable;
@@ -17,7 +17,7 @@ use syntax_expand::base::SyntaxExtension;
 use syntax_pos;
 use proc_macro::bridge::client::ProcMacro;
 
-pub use crate::schema::{provide, provide_extern};
+pub use crate::rmeta::{provide, provide_extern};
 
 // A map from external crate numbers (as decoded from some crate file) to
 // local crate numbers (as generated during this session). Each external
@@ -49,7 +49,7 @@ crate struct CrateMetadata {
     /// lifetime is only used behind `Lazy`, and therefore acts like an
     /// universal (`for<'tcx>`), that is paired up with whichever `TyCtxt`
     /// is being used to decode those values.
-    crate root: schema::CrateRoot<'static>,
+    crate root: rmeta::CrateRoot<'static>,
     /// For each definition in this crate, we encode a key. When the
     /// crate is loaded, we read all the keys and put them in this
     /// hashmap, which gives the reverse mapping. This allows us to
@@ -59,7 +59,7 @@ crate struct CrateMetadata {
     /// Trait impl data.
     /// FIXME: Used only from queries and can use query cache,
     /// so pre-decoding can probably be avoided.
-    crate trait_impls: FxHashMap<(u32, DefIndex), schema::Lazy<[DefIndex]>>,
+    crate trait_impls: FxHashMap<(u32, DefIndex), rmeta::Lazy<[DefIndex]>>,
     /// Proc macro descriptions for this crate, if it's a proc macro crate.
     crate raw_proc_macros: Option<&'static [ProcMacro]>,
     /// Source maps for code from the crate.

src/librustc_metadata/lib.rs

@@ -30,7 +30,7 @@ mod dependency_format;
 mod foreign_modules;
 mod link_args;
 mod native_libs;
-mod schema;
+mod rmeta;
 
 pub mod creader;
 pub mod cstore;

src/librustc_metadata/locator.rs

@@ -214,7 +214,7 @@
 
 use crate::cstore::MetadataBlob;
 use crate::creader::Library;
-use crate::schema::{METADATA_HEADER, rustc_version};
+use crate::rmeta::{METADATA_HEADER, rustc_version};
 
 use rustc_data_structures::fx::FxHashSet;
 use rustc_data_structures::svh::Svh;

src/librustc_metadata/rmeta/decoder.rs

@@ -1,8 +1,8 @@
 // Decoding metadata from a single crate's metadata
 
 use crate::cstore::{self, CrateMetadata, MetadataBlob};
-use crate::schema::*;
-use crate::schema::table::{FixedSizeEncoding, PerDefTable};
+use crate::rmeta::*;
+use crate::rmeta::table::{FixedSizeEncoding, PerDefTable};
 
 use rustc_index::vec::IndexVec;
 use rustc_data_structures::sync::Lrc;

src/librustc_metadata/rmeta/decoder/cstore_impl.rs

@@ -2,7 +2,7 @@ use crate::cstore::{self, LoadedMacro};
 use crate::link_args;
 use crate::native_libs;
 use crate::foreign_modules;
-use crate::schema::{self, encoder};
+use crate::rmeta::{self, encoder};
 
 use rustc::ty::query::QueryConfig;
 use rustc::middle::cstore::{CrateSource, CrateStore, DepKind, EncodedMetadata, NativeLibraryKind};
@@ -528,6 +528,6 @@ impl CrateStore for cstore::CStore {
 
     fn metadata_encoding_version(&self) -> &[u8]
     {
-        schema::METADATA_HEADER
+        rmeta::METADATA_HEADER
     }
 }

src/librustc_metadata/rmeta/encoder.rs

@@ -1,5 +1,5 @@
-use crate::schema::*;
-use crate::schema::table::{FixedSizeEncoding, PerDefTable};
+use crate::rmeta::*;
+use crate::rmeta::table::{FixedSizeEncoding, PerDefTable};
 
 use rustc::middle::cstore::{LinkagePreference, NativeLibrary,
                             EncodedMetadata, ForeignModule};

src/librustc_metadata/rmeta/table.rs

@@ -1,4 +1,4 @@
-use crate::schema::*;
+use crate::rmeta::*;
 
 use rustc::hir::def_id::{DefId, DefIndex};
 use rustc_serialize::{Encodable, opaque::Encoder};