widl: Use is_string_type for detecting strings in write_typeformatstring_var to make it consistent with write_remoting_arg.

[Alexandre Julliard]

Robert Shearman <rob at codeweavers.com> writes:

> Fix the is_string_type function used for detecting strings by only
> examining aliases instead of both aliases and pointers. This is due to
> the requirement that pointers to strings be handled as pointers and so
> not detected as strings.

This breaks qmgr:

../../../tools/runtest -q -P wine -M qmgr.dll -T ../../.. -p qmgr_test.exe.so file.c && touch file.ok
file.c:127: Test failed: Got incorrect remote name
file.c:144: Test failed: Got incorrect local name
make: *** [file.ok] Error 2

-- 
Alexandre Julliard
julliard at winehq.org