Try this:
Code:
create or replace package TEST_2 is

wach_reversal_const CONSTANT VARCHAR2(32767)
:= ' s.nmr_reversal_code=''RE''';
usbw_reversal_const CONSTANT VARCHAR2(32767)
:= ' s.reversal_flag=''Y''';

PROCEDURE recon_1(fiid VARCHAR2, reversal_const VARCHAR2);
PROCEDURE recon_2(fiid VARCHAR2);
PROCEDURE recon_3(fiid VARCHAR2);

end TEST_2;
/