pgsql: Make ECPG regression tests run with -c only for

Log Message:
-----------
Make ECPG regression tests run with -c only for array_of_struct.pgc
on MSVC.

Fix strange nonstandard version of __stdcall specifyer in thread
tests on win32.

Modified Files:
--------------
    pgsql/src/tools/msvc:
        ecpg_regression.proj (r1.2 -> r1.3)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/tools/msvc/ecpg_regression.proj?r1=1.2&r2=1.3)
    pgsql/src/interfaces/ecpg/test/expected:
        thread-alloc.c (r1.1 -> r1.2)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/thread-alloc.c?r1=1.1&r2=1.2)
        thread-descriptor.c (r1.3 -> r1.4)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/thread-descriptor.c?r1=1.3&r2=1.4)
        thread-prep.c (r1.2 -> r1.3)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/thread-prep.c?r1=1.2&r2=1.3)
    pgsql/src/interfaces/ecpg/test/thread:
        alloc.pgc (r1.1 -> r1.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/thread/alloc.pgc?r1=1.1&r2=1.2)
        descriptor.pgc (r1.3 -> r1.4)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/thread/descriptor.pgc?r1=1.3&r2=1.4)
        prep.pgc (r1.2 -> r1.3)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/thread/prep.pgc?r1=1.2&r2=1.3)