Rename rustc_mir to rustc_const_eval.

compiler/rustc_const_eval/src/lib.rs

@@ -0,0 +1,56 @@
+/*!
+
+Rust MIR: a lowered representation of Rust.
+
+*/
+
+#![feature(assert_matches)]
+#![cfg_attr(bootstrap, feature(bindings_after_at))]
+#![feature(bool_to_option)]
+#![feature(box_patterns)]
+#![feature(control_flow_enum)]
+#![feature(crate_visibility_modifier)]
+#![feature(decl_macro)]
+#![feature(exact_size_is_empty)]
+#![feature(in_band_lifetimes)]
+#![feature(iter_zip)]
+#![feature(map_try_insert)]
+#![feature(min_specialization)]
+#![feature(slice_ptr_get)]
+#![feature(option_get_or_insert_default)]
+#![feature(never_type)]
+#![feature(trait_alias)]
+#![feature(trusted_len)]
+#![feature(trusted_step)]
+#![feature(try_blocks)]
+
+#[macro_use]
+extern crate tracing;
+#[macro_use]
+extern crate rustc_middle;
+
+pub mod const_eval;
+pub mod interpret;
+pub mod transform;
+pub mod util;
+
+use rustc_middle::ty::query::Providers;
+
+pub fn provide(providers: &mut Providers) {
+    const_eval::provide(providers);
+    providers.eval_to_const_value_raw = const_eval::eval_to_const_value_raw_provider;
+    providers.eval_to_allocation_raw = const_eval::eval_to_allocation_raw_provider;
+    providers.const_caller_location = const_eval::const_caller_location;
+    providers.destructure_const = |tcx, param_env_and_value| {
+        let (param_env, value) = param_env_and_value.into_parts();
+        const_eval::destructure_const(tcx, param_env, value)
+    };
+    providers.const_to_valtree = |tcx, param_env_and_value| {
+        let (param_env, raw) = param_env_and_value.into_parts();
+        const_eval::const_to_valtree(tcx, param_env, raw)
+    };
+    providers.deref_const = |tcx, param_env_and_value| {
+        let (param_env, value) = param_env_and_value.into_parts();
+        const_eval::deref_const(tcx, param_env, value)
+    };
+}