Simplify IntrinsicLowering and clarify that it is only for use by the
CBE and interpreter.

llvm-svn: 31755
diff --git a/llvm/lib/ExecutionEngine/Interpreter/Interpreter.cpp b/llvm/lib/ExecutionEngine/Interpreter/Interpreter.cpp
index 78e7a3c..4728c95 100644
--- a/llvm/lib/ExecutionEngine/Interpreter/Interpreter.cpp
+++ b/llvm/lib/ExecutionEngine/Interpreter/Interpreter.cpp
@@ -67,7 +67,7 @@
   initializeExternalFunctions();
   emitGlobals();
 
-  IL = new DefaultIntrinsicLowering();
+  IL = new IntrinsicLowering();
 }
 
 Interpreter::~Interpreter() {