Backported from upstream druntime 2.084

Reviewed-on: https://github.com/dlang/druntime/pull/2469

libphobos/ChangeLog:

	* libdruntime/Makefile.am (DRUNTIME_DSOURCES): Remove rt/util/hash.d
	* libdruntime/Makefile.in: Rebuild.
	* testsuite/libphobos.aa/aa.exp: New file.
	* testsuite/libphobos.aa/test_aa.d: New test.
	* testsuite/libphobos.hash/hash.exp: New file.
	* testsuite/libphobos.hash/test_hash.d: New test.

From-SVN: r268754