[builtins] support exception handling in TFJ builtins

src/compiler/code-assembler.h

Index: src/compiler/code-assembler.h
diff --git a/src/compiler/code-assembler.h b/src/compiler/code-assembler.h
index a8e27ec9292dc2a6e3eecabb75e1d0c81193fd66..bea999b705627fb558a3f3de548b54e9b47dbb52 100644
--- a/src/compiler/code-assembler.h
+++ b/src/compiler/code-assembler.h
@@ -406,6 +406,10 @@ class CodeAssembler {
   Node* CallJS(Callable const& callable, Node* context, Node* function,
                Node* receiver, Node* arg1, Node* arg2, size_t result_size = 1);
 
+  // Exception handling support.
+  void GotoIfException(Node* node, Label* if_exception,
+                       Variable* exception_var = nullptr);
+
   // Branching helpers.
   void BranchIf(Node* condition, Label* if_true, Label* if_false);