* Improve trap error messages The new trap error message for the issue #828 looks like: ``` thread 'main' panicked at 'a', /proc/self/fd/11:1:13 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace. Error: failed to run main module `test.wasm` Caused by: 0: failed to invoke `_start` 1: wasm trap: unreachable, source location: @6cea wasm backtrace: 0: __rust_start_panic 1: rust_panic 2: std::panicking::rust_panic_with_hook::h57f0cff11449798f 3: std::panicking::begin_panic::hd620695467c5dd1f 4: test::main::ha54db001eabbde1b 5: std::rt::lang_start::{{closure}}::h5acfb82693695869 6: std::sys_common::backtrace::__rust_begin_short_backtrace::h39e8b9420da241f9 7: std::panicking::try::do_call::hb7ebfcd70d5f703e 8: __rust_maybe_catch_panic 9: std::rt::lang_start_internal::hd5f64f52a5c5315c 10: std::rt::lang_start::h2a51d79994dd0c4b 11: __original_main 12: _start ``` Closes #828 * Tidy up the style of the traps tests * Add some tests and module names
This crate implements a prototype of the wasm interface types proposal for Wasmtime.