* coretype.h (yasm_value): Add size field (specified in bits).

* coretype.h (yasm_value): Add size field (specified in bits).
(yasm_value_output_func): Remove valsize and shift parameters.
* bytecode.h (yasm_effaddr): Remove disp_len, replacing with
need_nonzero_len.
(yasm_immval): Remove len.
* value.h (yasm_value_initialize): Add size parameter.
(yasm_value_finalize_expr): Likewise.
(yasm_value_output_basic): Remove valsize and shift parameters.

Update all implementations and users for the above.

* intnum.c (yasm_intnum_calc): Fix bug in shift right (was doing a logical
instead of arithmetic shift).

* lc3b-basic.asm, lc3b-basic.errwarn, lc3b-basic.hex: Update based on
fixed warnings.

svn path=/trunk/yasm/; revision=1534