Fix parsing array typedefs of unknown size

Fix parsing array typedefs of unknown size

This must compile:
 typedef int arrtype1[];
 arrtype1 sinit19 = {1};
 arrtype1 sinit20 = {2,3};
and generate two arrays of one resp. two elements.  Before the fix
the determined size of the first array was encoded in the type
directly, so sinit20 couldn't be parsed anymore (because arrtype1
was thought to be only one element long).