[ExecutionEngine] Fix r227228 tests on Windows

On Windows, we're running MCJIT with ELF, so the module needs to have
its Triple explicitly adjusted.

llvm-svn: 227247

llvm/unittests/ExecutionEngine/MCJIT/MCJITTestBase.h

@@ -344,6 +344,7 @@ protected:
   void createJITFromAssembly(const char *Test) {
     SMDiagnostic Error;
     M = parseAssemblyString(Test, Error, Context);
+    M->setTargetTriple(Triple::normalize(BuilderTriple));
 
     std::string errMsg;
     raw_string_ostream os(errMsg);