Fix the read barrier builds.

A check failure (!UseJit() in ArtMethod::Invoke()) in forced interpret
only mode in the eng build with JIT enabled by default on target.

A build failure (inl header file issues) in the USE_BAKER_READ_BARRIER
build.

Change-Id: Ib13632b10864ad8b4691b66971c0ab5d2ae1e675
diff --git a/runtime/runtime.cc b/runtime/runtime.cc
index 23a7db6..9e0ab0c 100644
--- a/runtime/runtime.cc
+++ b/runtime/runtime.cc
@@ -1646,6 +1646,10 @@
 
 void Runtime::CreateJit() {
   CHECK(!IsAotCompiler());
+  if (GetInstrumentation()->IsForcedInterpretOnly()) {
+    // Don't create JIT if forced interpret only.
+    return;
+  }
   std::string error_msg;
   jit_.reset(jit::Jit::Create(jit_options_.get(), &error_msg));
   if (jit_.get() != nullptr) {