Add missing break.

src/arm/full-codegen-arm.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 1391 matching lines @@
       // Non-smi: call stub leaving result in accumulator register.
       __ CallStub(&stub);
       __ b(&done);
       // Perform operation directly on Smis.
       __ bind(&smi);
       __ mvn(result_register(), Operand(result_register()));
       // Bit-clear inverted smi-tag.
       __ bic(result_register(), result_register(), Operand(kSmiTagMask));
       __ bind(&done);
       Apply(context_, result_register());
+      break;
     }
 
     default:
       UNREACHABLE();
   }
 }
 
 
 void FullCodeGenerator::VisitCountOperation(CountOperation* expr) {
   Comment cmnt(masm_, "[ CountOperation");
@@ skipping 338 matching lines @@
   __ pop(result_register());
   ASSERT_EQ(1, kSmiTagSize + kSmiShiftSize);
   __ mov(r1, Operand(r1, ASR, 1));  // Un-smi-tag value.
   __ add(pc, r1, Operand(masm_->CodeObject()));
 }
 
 
 #undef __
 
 } }  // namespace v8::internal