Because we don't support HHVM anymore, there is no reason to keep a
condition that keeps the test when running the test suite in HHVM.
Signed-off-by: Henrique Moody <henriquemoody@gmail.com>
Previously, the MimeTypeTest was matching UNIX-style file slashes
in its PHPUnit Expected Exception. This change fixes it to
ignore the slash and match only the file name and pass on Windows
platforms as well.
Many changes were made on `ValidationException::stringify`:
- Add support for instances of `Exception`;
- Add support for instances of `Traversable`;
- Add support for resources;
- Improve `Array` conversion;
- Improve `Object` conversion;
- Improve conversion of all values by using JSON.
Now, all the parameters of the exception classes are just converted to
string when replacing parameters on exceptions, so the exception classes
now keep the original value of all parameters.
