Upgrade Rust toolchain to nightly-2023-02-18

Upstream PRs that require local changes:

- Switch to EarlyBinder for type_of query rust-lang/rust#107753
- Factor query arena allocation out from query caches rust-lang/rust#107833

Co-authored-by: Qinheping Hu <qinhh@amazon.com>

kani-compiler/src/codegen_cprover_gotoc/codegen/static_var.rs

@@ -28,7 +28,7 @@ impl<'tcx> GotocCtx<'tcx> {
         let pretty_name = Instance::new(def_id, InternalSubsts::empty()).to_string();
         debug!(?symbol_name, ?pretty_name, "declare_static {}", item);
 
-        let typ = self.codegen_ty(self.tcx.type_of(def_id));
+        let typ = self.codegen_ty(self.tcx.type_of(def_id).subst_identity());
         let span = self.tcx.def_span(def_id);
         let location = self.codegen_span(&span);
         let symbol = Symbol::static_variable(symbol_name.clone(), symbol_name, typ, location)

kani-compiler/src/kani_middle/provide.rs

@@ -6,10 +6,10 @@
 
 use crate::kani_middle::reachability::{collect_reachable_items, filter_crate_items};
 use crate::kani_middle::stubbing;
+use crate::kani_middle::ty::query::query_provided::collect_and_partition_mono_items;
 use kani_queries::{QueryDb, UserInput};
 use rustc_hir::def_id::DefId;
 use rustc_interface;
-use rustc_middle::ty::query::query_stored::collect_and_partition_mono_items;
 use rustc_middle::{
     mir::Body,
     ty::{query::ExternProviders, query::Providers, TyCtxt},

rust-toolchain.toml

@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0 OR MIT
 
 [toolchain]
-channel = "nightly-2023-02-17"
+channel = "nightly-2023-02-18"
 components = ["llvm-tools-preview", "rustc-dev", "rust-src", "rustfmt"]