Fix MegamorphicMiss stub on ARM.

runtime/vm/stub_code_ia32.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 430 matching lines @@
   __ movl(EAX, Address(ESP, EAX, TIMES_2, 2 * kWordSize));
   // Preserve IC data and arguments descriptor.
   __ pushl(ECX);
   __ pushl(EDX);
 
   const Immediate& raw_null =
       Immediate(reinterpret_cast<intptr_t>(Instructions::null()));
   __ pushl(raw_null);  // Space for the result of the runtime call.
   __ pushl(EAX);  // Pass receiver.
   __ pushl(ECX);  // Pass IC data.
-  __ pushl(EDX);  // Pass rguments descriptor.
+  __ pushl(EDX);  // Pass arguments descriptor.
   __ CallRuntime(kMegamorphicCacheMissHandlerRuntimeEntry);
   // Discard arguments.
   __ popl(EAX);
   __ popl(EAX);
   __ popl(EAX);
   __ popl(EAX);  // Return value from the runtime call (instructions).
   __ popl(EDX);  // Restore arguments descriptor.
   __ popl(ECX);  // Restore IC data.
   __ LeaveFrame();
 
@@ skipping 1685 matching lines @@
   __ Bind(&done);
   __ popl(temp);
   __ popl(right);
   __ popl(left);
   __ ret();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32