[binutils-gdb] Skip testing structures with floating points

[sergiodj+buildbot at sergiodj dot net]

*** TEST RESULTS FOR COMMIT 62df7e210ebf096dc09ad14d9316fcda0f6217f7 ***

Author: Yao Qi <yao.qi@linaro.org>
Branch: master
Commit: 62df7e210ebf096dc09ad14d9316fcda0f6217f7

Skip testing structures with floating points

This patch skips some tests related to floating point in structs.exp
if gdb_skip_float_test return false.

gdb/testsuite:

2016-10-13  Yao Qi  <yao.qi@linaro.org>

	* gdb.base/structs.exp: Invoke gdb_skip_float_test, and do
	floating point tests if $skip_float_test is false.