Rename PerQueryVTables as QueryVTables.

The `Per` isn't really necessary.

compiler/rustc_middle/src/query/plumbing.rs

@@ -14,7 +14,7 @@
 use crate::dep_graph;
 use crate::dep_graph::{DepKind, DepNode, DepNodeIndex, SerializedDepNodeIndex};
 use crate::ich::StableHashingContext;
-use crate::queries::{ExternProviders, PerQueryVTables, Providers, QueryArenas};
+use crate::queries::{ExternProviders, Providers, QueryArenas, QueryVTables};
 use crate::query::on_disk_cache::{CacheEncoder, EncodedDepNodeIndex, OnDiskCache};
 use crate::query::stack::{QueryStackDeferred, QueryStackFrame, QueryStackFrameExtra};
 use crate::query::{QueryCache, QueryInfo, QueryJob};
@@ -229,7 +229,7 @@ pub struct QuerySystemFns {
 
 pub struct QuerySystem<'tcx> {
     pub arenas: WorkerLocal<QueryArenas<'tcx>>,
-    pub query_vtables: PerQueryVTables<'tcx>,
+    pub query_vtables: QueryVTables<'tcx>,
 
     /// This provides access to the incremental compilation on-disk cache for query results.
     /// Do not access this directly. It is only meant to be used by
@@ -588,9 +588,7 @@ pub fn $name(self, value: $name::ProvidedValue<'tcx>) {
         )*
 
         /// Holds a `QueryVTable` for each query.
-        ///
-        /// ("Per" just makes this pluralized name more visually distinct.)
-        pub struct PerQueryVTables<'tcx> {
+        pub struct QueryVTables<'tcx> {
             $(
                 pub $name: ::rustc_middle::query::plumbing::QueryVTable<'tcx, $name::Storage<'tcx>>,
             )*

compiler/rustc_query_impl/src/plumbing.rs

@@ -692,8 +692,8 @@ pub(crate) fn query_key_hash_verify<'tcx>(tcx: TyCtxt<'tcx>) {
             }
         })*}
 
-        pub fn make_query_vtables<'tcx>(incremental: bool) -> queries::PerQueryVTables<'tcx> {
-            queries::PerQueryVTables {
+        pub fn make_query_vtables<'tcx>(incremental: bool) -> queries::QueryVTables<'tcx> {
+            queries::QueryVTables {
                 $(
                     $name: query_impl::$name::make_query_vtable(incremental),
                 )*