[Vala] [Genie] bug: stacking classifiers

[Arc Riley <arcriley gmail com>]

The following code works in Genie:

[CCode (cprefix="FOO_")]
class Foo

The following code does not:
[Compact]
[CCode (cprefix="FOO_")]
class Foo

Every combination I've tried fails, noting the problem being the "[" on the
second line.