When emitting an aggregate into a temporary, make sure we set the alignment on the alloca.
When emitting an aggregate into a temporary, make sure we set the alignment
on the alloca.

The fact that codegen makes this class of bug so wonderfully easy to make is
embarrassing.



git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@96204 91177308-0d34-0410-b5e6-96231b3b80d8

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