Fix Kaleidoscope tuto: ExecutionEngine->getDataLayout() returns a ref

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 242416
diff --git a/llvm/examples/Kaleidoscope/Chapter7/toy.cpp b/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
index b1a41fa..0217fac 100644
--- a/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
+++ b/llvm/examples/Kaleidoscope/Chapter7/toy.cpp
@@ -1211,7 +1211,7 @@
 
   // Set up the optimizer pipeline.  Start with registering info about how the
   // target lays out data structures.
-  TheModule->setDataLayout(*TheExecutionEngine->getDataLayout());
+  TheModule->setDataLayout(TheExecutionEngine->getDataLayout());
   // Provide basic AliasAnalysis support for GVN.
   OurFPM.add(createBasicAliasAnalysisPass());
   // Promote allocas to registers.