Fix lazy deoptimization at HInvokeFunction and enable target-recording call-function stub.

src/ia32/full-codegen-ia32.cc

 // Copyright 2011 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 2086 matching lines @@
   int arg_count = args->length();
   { PreservePositionScope scope(masm()->positions_recorder());
     for (int i = 0; i < arg_count; i++) {
       VisitForStackValue(args->at(i));
     }
   }
   // Record source position for debugger.
   SetSourcePosition(expr->position());
 
   // Record call targets in unoptimized code, but not in the snapshot.
-  // TODO(1789): Reenable temporarily disabled recording CallFunctionStub
-  // when the issue is fixed.
-  bool record_call_target = false && !Serializer::enabled();
+  bool record_call_target = !Serializer::enabled();
   if (record_call_target) {
     flags = static_cast<CallFunctionFlags>(flags | RECORD_CALL_TARGET);
   }
   CallFunctionStub stub(arg_count, flags);
   __ mov(edi, Operand(esp, (arg_count + 1) * kPointerSize));
   __ CallStub(&stub, expr->id());
   if (record_call_target) {
     // There is a one element cache in the instruction stream.
 #ifdef DEBUG
     int return_site_offset = masm()->pc_offset();
@@ skipping 2225 matching lines @@
   *context_length = 0;
   return previous_;
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32