PR middle-end/89303 add testcase for std::enable_shared_from_this

	* testsuite/20_util/enable_shared_from_this/89303.cc: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-8-branch@268874 138bc75d-0d04-0410-961f-82ee72b054a4
2 files changed