push [address] - operand size not specyfied

make fasm to use default size, depending on use16/32/64 directive.
i have to put dword every single time.

i think its a bug, because if i put in [] variable declared as rd/dd it works fine.

It works fine when declared as dd/rd because Fasm implies the size based on the block size it was declared as. Declare as word sized and Fasm will assume it should be treated as a word. Labels and addresses have no size specification.