minor #3381 Added return and argument type for LoaderInterface (reneroboter)
minor #3381 Added return and argument type for LoaderInterface (reneroboter)

This PR was merged into the 3.x branch.

Discussion
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Added return and argument type for LoaderInterface

@fabpot I have started with my preparation for the Twig Certification. Here I found some missing return and argument type at the DatabaseTwigLoader example. Hopefully I fix everything corrent. I couldn't found a CONTRIBUTING.md or anything else.

Commits
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5521e034 Added return and argument type for LoaderInterface

twigphp/Twig,twigphp/Twig,twigphp/Twig