CallFunctionStub was missing a write-barrier for write into the global cell.

src/ia32/code-stubs-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 4307 matching lines @@
     // function without changing the state.
     __ cmp(ecx, Operand(edi));
     __ j(equal, &call, Label::kNear);
     __ cmp(Operand(ecx), Immediate(MegamorphicSentinel(isolate)));
     __ j(equal, &call, Label::kNear);
 
     // A monomorphic miss (i.e, here the cache is not uninitialized) goes
     // megamorphic.
     __ cmp(Operand(ecx), Immediate(UninitializedSentinel(isolate)));
     __ j(equal, &initialize, Label::kNear);
+    // MegamorphicSentinel is a root so no write-barrier is needed.
     __ mov(FieldOperand(ebx, JSGlobalPropertyCell::kValueOffset),
            Immediate(MegamorphicSentinel(isolate)));
     __ jmp(&call, Label::kNear);
 
     // An uninitialized cache is patched with the function.
     __ bind(&initialize);
     __ mov(FieldOperand(ebx, JSGlobalPropertyCell::kValueOffset), edi);
+    __ mov(ecx, edi);
+    __ RecordWriteField(ebx,
+                        JSGlobalPropertyCell::kValueOffset,
+                        ecx,
+                        edx,
+                        kDontSaveFPRegs,
+                        OMIT_REMEMBERED_SET,  // Cells are rescanned.
+                        OMIT_SMI_CHECK);
 
     __ bind(&call);
   }
 
   // Fast-case: Just invoke the function.
   ParameterCount actual(argc_);
 
   if (ReceiverMightBeImplicit()) {
     Label call_as_function;
     __ cmp(eax, isolate->factory()->the_hole_value());
@@ skipping 2568 matching lines @@
 
   // Fall through when we need to inform the incremental marker.
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32