Remove AllocationInst.  Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.

llvm-svn: 84969
diff --git a/llvm/lib/VMCore/AsmWriter.cpp b/llvm/lib/VMCore/AsmWriter.cpp
index d8a708d..f6c5fd3 100644
--- a/llvm/lib/VMCore/AsmWriter.cpp
+++ b/llvm/lib/VMCore/AsmWriter.cpp
@@ -1966,7 +1966,7 @@
     Out << " unwind ";
     writeOperand(II->getUnwindDest(), true);
 
-  } else if (const AllocationInst *AI = dyn_cast<AllocationInst>(&I)) {
+  } else if (const AllocaInst *AI = dyn_cast<AllocaInst>(&I)) {
     Out << ' ';
     TypePrinter.print(AI->getType()->getElementType(), Out);
     if (!AI->getArraySize() || AI->isArrayAllocation()) {