[builtins] support exception handling in TFJ builtins

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index b4b3c38289dcf1a3fc92f7eff04156c284f271a9..44b8f0e844b2c53860878482446f812f455d97f0 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -1222,7 +1222,11 @@ Object* Isolate::UnwindAndFindHandler() {
 
         // Gather information from the frame.
         code = frame->LookupCode();
-        if (code->marked_for_deoptimization()) {
+
+        // TODO(bmeurer): Turbofanned BUILTIN frames appear as OPTIMIZED, but
+        // do not have a code kind of OPTIMIZED_FUNCTION.
+        if (code->kind() == Code::OPTIMIZED_FUNCTION &&
+            code->marked_for_deoptimization()) {
           // If the target code is lazy deoptimized, we jump to the original
           // return address, but we make a note that we are throwing, so that
           // the deoptimizer can do the right thing.