[Interpreter] Add support for Throw.

src/compiler/interpreter-assembler.cc

Index: src/compiler/interpreter-assembler.cc
diff --git a/src/compiler/interpreter-assembler.cc b/src/compiler/interpreter-assembler.cc
index 9173fedc27ff7dd637869ec1db59013c77d49526..51ce47fc104920594bf46f802fb04732ebb25cfe 100644
--- a/src/compiler/interpreter-assembler.cc
+++ b/src/compiler/interpreter-assembler.cc
@@ -557,15 +557,20 @@ void InterpreterAssembler::DispatchTo(Node* new_bytecode_offset) {
 }
 
 
+void InterpreterAssembler::Abort(BailoutReason bailout_reason) {
+  Node* abort_id = SmiTag(Int32Constant(bailout_reason));
+  CallRuntime(Runtime::kAbort, abort_id);
+  Return();
+}
+
+
 void InterpreterAssembler::AbortIfWordNotEqual(Node* lhs, Node* rhs,
                                                BailoutReason bailout_reason) {
   RawMachineAssembler::Label match, no_match;
   Node* condition = raw_assembler_->WordEqual(lhs, rhs);
   raw_assembler_->Branch(condition, &match, &no_match);
   raw_assembler_->Bind(&no_match);
-  Node* abort_id = SmiTag(Int32Constant(bailout_reason));
-  CallRuntime(Runtime::kAbort, abort_id);
-  Return();
+  Abort(bailout_reason);
   raw_assembler_->Bind(&match);
 }