Implement CompilerInterface

With `TablesWrapper` wrapped by `CompilerInterface`, the stable-mir's TLV stores a pointer to `CompilerInterface`, while the rustc-specific TLV stores a pointer to tables.

Author: makai410

compiler/rustc_smir/src/rustc_internal/mod.rs

@@ -18,6 +18,7 @@ use rustc_span::def_id::{CrateNum, DefId};
 use scoped_tls::scoped_thread_local;
 use stable_mir::Error;
 use stable_mir::abi::Layout;
+use stable_mir::compiler_interface::CompilerInterface;
 use stable_mir::ty::IndexedVal;
 
 use crate::rustc_smir::context::TablesWrapper;
@@ -233,7 +234,12 @@ where
         mir_consts: IndexMap::default(),
         layouts: IndexMap::default(),
     }));
-    stable_mir::compiler_interface::run(&tables, || init(&tables, f))
+
+    let interface = CompilerInterface { cx: tables };
+
+    // Pass the `CompilerInterface` to compiler_interface::run
+    // and initialize the rustc-specific TLS with tables.
+    stable_mir::compiler_interface::run(&interface, || init(&interface.cx, f))
 }
 
 /// Instantiate and run the compiler with the provided arguments and callback.