When evaluating method calls under EVAL_SKIP, the "object" and the
arguments to the method should also be evaluated under EVAL_SKIP,
instead of skipping to evaluate them. Getting this right fixes PR
c++/17494.

gdb/ChangeLog:

2014-10-20  Siva Chandra Reddy  <sivachandra@google.com>

        PR c++/17494
        * eval.c (evaluate_subexp_standard): Evaluate the "object" and
        the method args also under EVAL_SKIP when evaluating method
        calls under EVAL_SKIP.

gdb/testsuite/ChangeLog:

2014-10-20  Siva Chandra Reddy  <sivachandra@google.com>

        PR c++/17494
        * gdb.cp/pr17494.cc: New file.
        * gdb.cp/pr17494.exp: New file.