It does seem silly for this to all be templated, but I couldn't
really see a very elegant solution given how I wanted things to
be genericized.
...interestingly, a ?t.t[] type would have done nicely for some
of this.
Swift SVN r1807
heap allocations it makes, and switch swift_alloc over to pass
that pointer in as well as the alignment. Also, compute
whether a type is POD during its generation and cache that in
the object, and introduce a method on TypeInfo to destroy an
object in memory.
Swift SVN r1356
an owner attached. Use this to implement [byref(heap)]. Force
locals to the heap if they've been referenced in a way that requires
this.
Swift SVN r1265
