asm-differ throws a diff error for jump tables in `.text` from MSVC objects

[1superchip]

MSVC emits jump tables in .text which has caused diff errors for objects that contain jump tables in .text.

Jump table entries are disassembled by objdump as:

0000003c <$L282>:
  3c:   00 00                   add    %al,(%eax)
                        3c: dir32       $L272-0x11
  3e:   00 00                   add    %al,(%eax)

There are 2 instructions as the jump table entry is relocatable and is 0x00000000 in the object. 0x0000 is disassembled to add %al,(%eax).

It would be great if these were properly handled to prevent diff errors and to give more information to the user.