Cosmetic changes ("set up" is a verb, "setup" is a noun).

src/arm/deoptimizer-arm.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 301 matching lines @@
   while (ok && input_offset >= 0) {
     ok = DoOsrTranslateCommand(&iterator, &input_offset);
   }
 
   // If translation of any command failed, continue using the input frame.
   if (!ok) {
     delete output_[0];
     output_[0] = input_;
     output_[0]->SetPc(reinterpret_cast<uint32_t>(from_));
   } else {
-    // Setup the frame pointer and the context pointer.
+    // Set up the frame pointer and the context pointer.
     output_[0]->SetRegister(fp.code(), input_->GetRegister(fp.code()));
     output_[0]->SetRegister(cp.code(), input_->GetRegister(cp.code()));
 
     unsigned pc_offset = data->OsrPcOffset()->value();
     uint32_t pc = reinterpret_cast<uint32_t>(
         optimized_code_->entry() + pc_offset);
     output_[0]->SetPc(pc);
   }
   Code* continuation = isolate_->builtins()->builtin(Builtins::kNotifyOSR);
   output_[0]->SetContinuation(
@@ skipping 417 matching lines @@
     __ push(ip);
     __ b(&done);
     ASSERT(masm()->pc_offset() - start == table_entry_size_);
   }
   __ bind(&done);
 }
 
 #undef __
 
 } }  // namespace v8::internal