Now running test.sh under Travis (actually script has been renamed to
`tool/build_and_test.sh` since it built and tested :). Keeping
`test.sh` as alias to build_and_test.sh in case people are used to
using it in the test directory.
Also removed `_visitOrEmpty` to resolve the following analyzer hint (so
that tests would pass):
> [hint] The method '_visitOrEmpty' is not used
(/Users/chalin/git/dev_compiler/lib/src/codegen/js_codegen.dart, line
2028, col 16)
Patrice Chalin
dfff27cf78