invalid dereference on enum leads to compiler internal error

[grahame]

Compiling the following incorrect program

enum blah {
    field1
}
fn main(args: [str]) {
    let a : int = *field1;
}

with rust 0d5d2e5 fails:

test.rs:5:18: 5:25 error: can only dereference enums with a single variant which has a single argument
test.rs:5     let a : int = *field1;
                            ^~~~~~~
rust: upcall fail 'bounds check', ../src/rustc/middle/typeck.rs:2705
error: internal compiler error unexpected failure
note: The compiler hit an unexpected failure path. This is a bug. Try running with RUST_LOG=rustc=0,::rt::backtrace to get further details and report the results to github.com/mozilla/rust/issues
rust: upcall fail 'explicit failure', ../src/rustc/driver/rustc.rs:182
rust: domain main @0x7ffa93819a00 root task failed