Revert "Revert "Add JIT""

Added missing EntryPointToCodePointer.

This reverts commit a5ca888d715cd0c6c421313211caa1928be3e399.

Change-Id: Ia74df0ef3a7babbdcb0466fd24da28e304e3f5af
diff --git a/runtime/gc/heap.cc b/runtime/gc/heap.cc
index 419d555..9e159c2 100644
--- a/runtime/gc/heap.cc
+++ b/runtime/gc/heap.cc
@@ -655,7 +655,7 @@
 }
 
 bool Heap::IsCompilingBoot() const {
-  if (!Runtime::Current()->IsCompiler()) {
+  if (!Runtime::Current()->IsAotCompiler()) {
     return false;
   }
   for (const auto& space : continuous_spaces_) {