3 calls to field_valid_language()

FieldTranslationsTestCase::testFieldFormTranslationRevisions in modules/field/tests/field.test: Tests field translations when creating a new revision.
field_attach_form in modules/field/field.attach.inc: Add form elements for all fields for an entity to a form structure.
field_language in modules/field/field.multilingual.inc: Returns the display language for the fields attached to the given entity.

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