d: Merge upstream dmd e49192807

d: Merge upstream dmd e49192807

1. Removes prelude assert for constructors and destructors.  To trigger
these asserts one needed to construct or destruct an aggregate at the
null memory location.  This would crash upon any data member access,
which is required for a constructor or destructor to do anything useful.

2. Disables bounds checking in foreach statements, when the array is
either a static or dynamic array.  If we trust the array `.length' to
be correct, then all elements are between `[0 .. length]', and can't
can't be out of bounds.

Reviewed-on: https://github.com/dlang/dmd/pull/11623

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd e49192807