interpreter: Fix errant fallthrough.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174080 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/Interpreter/Execution.cpp b/lib/ExecutionEngine/Interpreter/Execution.cpp
index 431744a..b9a3fc7 100644
--- a/lib/ExecutionEngine/Interpreter/Execution.cpp
+++ b/lib/ExecutionEngine/Interpreter/Execution.cpp
@@ -1169,10 +1169,12 @@
                       .VarArgs[VAList.UIntPairVal.second];
   Type *Ty = I.getType();
   switch (Ty->getTypeID()) {
-    case Type::IntegerTyID: Dest.IntVal = Src.IntVal;
+  case Type::IntegerTyID:
+    Dest.IntVal = Src.IntVal;
     IMPLEMENT_VAARG(Pointer);
     IMPLEMENT_VAARG(Float);
     IMPLEMENT_VAARG(Double);
+    break;
   default:
     dbgs() << "Unhandled dest type for vaarg instruction: " << *Ty << "\n";
     llvm_unreachable(0);