[builtins] support exception handling in TFJ builtins

src/compiler/raw-machine-assembler.h

Index: src/compiler/raw-machine-assembler.h
diff --git a/src/compiler/raw-machine-assembler.h b/src/compiler/raw-machine-assembler.h
index f1bc3d789762eb3bd0338e4445c37310dbe5dc0b..329169031df4420674c92b3b0823107f4735235f 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -748,6 +748,8 @@ class RawMachineAssembler {
   void Goto(RawMachineLabel* label);
   void Branch(Node* condition, RawMachineLabel* true_val,
               RawMachineLabel* false_val);
+  void BranchIfSuccess(Node* call, RawMachineLabel* if_success,

[Michael Starzinger, 2016/08/19 08:53:56]

I like the fact that the RawMachineAssembler is offering just the bare-bones
interface to add the control projections to a call. This is nice. Can we rename
the method to something that does not contain the word "branch" though, to
clarify that they are continuations and not actual branches. I would vote for
calling the method just "Continuation" or "Continuations". WDYT?

+                       RawMachineLabel* if_exception);
   void Switch(Node* index, RawMachineLabel* default_label,
               const int32_t* case_values, RawMachineLabel** case_labels,
               size_t case_count);