Mark Lee authored Aug 12, 2009 and Jürg Billeter committed Aug 15, 2009

Adds support for the array_length_type CCode annotation, which allows
methods with non-int array length parameters to be declared properly.
Fixes possible crashes.

Also adds Vala.CType, to work around the temporary variable type
limitations.

This fix only works with array return types, not with array parameters.

Partially fixes bug 529866.