[PATCH] Add bfd_get_file_size to get archive element size

[Maciej W. Rozycki]

On Thu, 25 May 2017, H.J. Lu wrote:

> We can't use stat() to get archive element size.  Add bfd_get_file_size
> to get size for both normal files and archive elements.

 Your changes to the test script have caused framework errors:

ERROR: tcl error sourcing .../binutils/testsuite/binutils-all/objdump.exp.
ERROR: can't read "testarchive": no such variable

for a few targets, i.e. alpha-dec-vms, alpha-linuxecoff, ia64-vms.  Can 
you please look into it?  Can you add these targets to your regular 
testing (for target-independent changes, that is)?

  Maciej