Implement FIXME in debug/src/expression.rs (#902)

crates/fuzzing/tests/regressions.rs

@@ -5,7 +5,7 @@
 //! use the Wasm binary by including it via
 //! `include_bytes!("./regressions/some-descriptive-name.wasm")`.
 
-use wasmtime::Strategy;
+use wasmtime::{Config, Strategy};
 use wasmtime_fuzzing::oracles;
 
 #[test]
@@ -19,3 +19,11 @@ fn instantiate_empty_module_with_memory() {
     let data = wat::parse_str(include_str!("./regressions/empty_with_memory.wat")).unwrap();
     oracles::instantiate(&data, Strategy::Auto);
 }
+
+#[test]
+fn instantiate_module_that_compiled_to_x64_has_register_32() {
+    let mut config = Config::new();
+    config.debug_info(true);
+    let data = wat::parse_str(include_str!("./regressions/issue694.wat")).unwrap();
+    oracles::instantiate_with_config(&data, config);
+}