asan_test.C: Add -std=c++11 and -DSANITIZER_USE_DEJAGNU_GTEST=1 to dg-options...

asan_test.C: Add -std=c++11 and -DSANITIZER_USE_DEJAGNU_GTEST=1 to dg-options...

	* g++.dg/asan/asan_test.C: Add -std=c++11 and
	-DSANITIZER_USE_DEJAGNU_GTEST=1 to dg-options, remove
	-DASAN_USE_DEJAGNU_GTEST=1.
	* g++.dg/asan/asan_mem_test.cc: Updated from upstream
	r209283.
	* g++.dg/asan/asan_oob_test.cc: Likewise.
	* g++.dg/asan/sanitizer_test_utils.h: Likewise.
	* g++.dg/asan/asan_str_test.cc: Likewise.
	* g++.dg/asan/asan_test_utils.h: Likewise.
	* g++.dg/asan/sanitizer_test_config.h: Likewise.
	* g++.dg/asan/asan_test.cc: Likewise.  Allow size 12
	for long double.
	* g++.dg/asan/sanitizer_pthread_wrappers.h: New file.
	Imported from upstream r209283.
	* g++.dg/asan/asan_test_config.h: Likewise.

From-SVN: r211090