Revert "Revert "Add JIT""

Added missing EntryPointToCodePointer.

This reverts commit a5ca888d715cd0c6c421313211caa1928be3e399.

Change-Id: Ia74df0ef3a7babbdcb0466fd24da28e304e3f5af
diff --git a/runtime/transaction.cc b/runtime/transaction.cc
index 7e2e0a6..e26f955 100644
--- a/runtime/transaction.cc
+++ b/runtime/transaction.cc
@@ -32,7 +32,7 @@
 
 Transaction::Transaction()
   : log_lock_("transaction log lock", kTransactionLogLock), aborted_(false) {
-  CHECK(Runtime::Current()->IsCompiler());
+  CHECK(Runtime::Current()->IsAotCompiler());
 }
 
 Transaction::~Transaction() {