test_mac fails when enabled

[mstange]

% cargo test
    Finished test [unoptimized + debuginfo] target(s) in 0.04s
     Running unittests src/main.rs (target/debug/deps/fix_stacks-a64e346390a79ade)

running 8 tests
test tests::test_regex ... ok
test tests::test_linux_breakpad ... ok
test tests::test_files ... ok
test tests::test_linux_breakpad_fallback ... ok
test tests::test_mac ... FAILED
test tests::test_linux ... ok
test tests::test_windows_breakpad ... ok
test tests::test_windows ... ok

failures:

---- tests::test_mac stdout ----
thread 'tests::test_mac' panicked at 'assertion failed: `(left == right)`
  left: `"#00: main (/Users/njn/moz/fix-stacks/tests/mac-normal.c:17)"`,
 right: `"#00: main (tests/mac-multi + 0xd70)"`', src/tests.rs:244:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    tests::test_mac

test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.58s

error: test failed, to rerun pass '--bin fix-stacks'

[mstange]

This is due to getsentry/symbolic#471.

[mstange]

Specifically, tests/mac-normal.o has a function main at address 0x0, and we fail to look up line information for it because symbolic's line parsing ignores line rows at address 0x0.

[mstange]

I've disabled the test in #48.