The fs.readFile bug was hiding another bug that was causing this test
to pass, even so it was broken:
require.async("../fixtures/throws_error1") in test-module-loading.js
This patch fixes the original test by running _compile within a
try..catch block for _loadScript.
_loadScriptSync also had some useless (deprecated?) code for dealing
with module entry point exceptions. This code was also removed for
greater clarity.
- No more single line "node.js:176:9" errors
- No more strange output when error happens on first line due to
module wrapper function.
- A few tests to check these things
