Stop casting away const qualifier needlessly.

llvm-svn: 163258
diff --git a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
index 4afc900..ba0aeca 100644
--- a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -833,7 +833,7 @@
 static void StoreIntToMemory(const APInt &IntVal, uint8_t *Dst,
                              unsigned StoreBytes) {
   assert((IntVal.getBitWidth()+7)/8 >= StoreBytes && "Integer too small!");
-  uint8_t *Src = (uint8_t *)IntVal.getRawData();
+  const uint8_t *Src = (const uint8_t *)IntVal.getRawData();
 
   if (sys::isLittleEndianHost()) {
     // Little-endian host - the source is ordered from LSB to MSB.  Order the