IRgen: Fix silly thinko in r112021, which was generating code for the same expr
twice. This showed up as an assert on the odd test case because we generated the
decl map entry twice.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112943 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed