[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..78a347af55f0253e0779e609ca02ee53e61654e0 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -758,6 +758,10 @@ class RawMachineAssembler {
   void Deoptimize(Node* state);
   void DebugBreak();
   void Comment(const char* msg);
+  // Add success / exception successor blocks to a block ending with a throwing

[Michael Starzinger, 2016/08/19 18:37:43]

nit: What do you think about phrasing the comment as: "Add success / exception
successor blocks and ends the current basic block with a potentially throwing
call node." instead? Also add an empty newline before the comment for
readability.

[caitp, 2016/08/19 20:37:11]

sgtm, done

+  // opcode.
+  void Continuations(Node* call, RawMachineLabel* if_success,
+                     RawMachineLabel* if_exception);
 
   // Variables.
   Node* Phi(MachineRepresentation rep, Node* n1, Node* n2) {