Better variable accessor guessing

[RyanThompson]

Because the convention in theming is generally snake case and in PHP it is camel, consider the following:

{{ foo.bar_baz }} the getter is missed because it seems to be looking for getBar_baz()

However {{ foo.barBaz }} properly relates to getBarBaz() as far as conventions go.

It SHOULD check for getBarBaz() (snake case entire variable name) which will work in both tag cases but suggest best practices on the PHP side of things.

[RyanThompson]

Here I am guessing:

Twig/lib/Twig/Node/Expression/Call.php

Line 22 in 79333cc

$type = ucfirst($this->getAttribute('type'));

I can send a PR in if there is an agreement here ^_^

[Tobion]

Duplicate of #934

[RyanThompson]

Wow sure is - should have searched better thanks!