[2.0] Ignore comments starting by '/*'

[egeloen]

This PR rewrites a little bit the way how comments are ignored in order to exclude all lines without real executable codes.

Before:

After:

Additionally, this PR fixes #233

[sebastianbergmann]

I cannot reproduce this:

Or is this only a problem when the file is not executed?

[egeloen]

@sebastianbergmann Yes, it is when the file is not executed.

[egeloen]

Basically, the purpose of this PR is to rationalize how comments are ignored. A comment starting with // or /* should be handled/ignored the same way in a code coverage context whether the code is executed or not.

[sebastianbergmann]

Can you adapt your patch for master and send a separate pull request for that? I'll merge them both then. Thanks!

[egeloen]

I have replaced if ($token instanceof PHP_Token_DOC_COMMENT || ($token instanceof PHP_Token_COMMENT && (0 === strpos($_token, '/*')))) { by if (0 === strpos($_token, '/*')) { as we are in a switch where we only deal with PHP_Token_DOC_COMMENT and PHP_Token_COMMENT :)

Additionally, I have merged the last two if conditions in a single one.

[egeloen]

@sebastianbergmann Should I backport it to 1.2 too?