Fast-codegen: Adding support for try/catch and throw.

src/ia32/fast-codegen-ia32.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1693 matching lines @@
   // Uncook return address.
   __ mov(edx, Operand(esp, 0));
   __ sar(edx, 1);  // Convert smi to int.
   __ add(Operand(edx), Immediate(masm_->CodeObject()));
   __ mov(Operand(esp, 0), edx);
   // And return.
   __ ret(0);
 }
 
 
-void FastCodeGenerator::ThrowException() {
-  __ push(result_register());
-  __ CallRuntime(Runtime::kThrow, 1);
-}
-
 #undef __
 
 } }  // namespace v8::internal