Fix the full compiler on ARM to always generate the same code

src/arm/deoptimizer-arm.cc

 // Copyright 2012 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 55 matching lines @@
   // deoptimization entry.
   DeoptimizationInputData* deopt_data =
       DeoptimizationInputData::cast(code->deoptimization_data());
 #ifdef DEBUG
   Address prev_call_address = NULL;
 #endif
   for (int i = 0; i < deopt_data->DeoptCount(); i++) {
     if (deopt_data->Pc(i)->value() == -1) continue;
     Address call_address = code_start_address + deopt_data->Pc(i)->value();
     Address deopt_entry = GetDeoptimizationEntry(i, LAZY);
-    int call_size_in_bytes = MacroAssembler::CallSize(deopt_entry,
-                                                      RelocInfo::NONE);
+    // We need calls to have a predictable size in the unoptimized code, but
+    // this is optimized code, so we don't have to have a predictable size.
+    int call_size_in_bytes =
+        MacroAssembler::CallSizeNotPredictableSize(deopt_entry,
+                                                   RelocInfo::NONE);
     int call_size_in_words = call_size_in_bytes / Assembler::kInstrSize;
     ASSERT(call_size_in_bytes % Assembler::kInstrSize == 0);
     ASSERT(call_size_in_bytes <= patch_size());
     CodePatcher patcher(call_address, call_size_in_words);
     patcher.masm()->Call(deopt_entry, RelocInfo::NONE);
     ASSERT(prev_call_address == NULL ||
            call_address >= prev_call_address + patch_size());
     ASSERT(call_address + patch_size() <= code->instruction_end());
 #ifdef DEBUG
     prev_call_address = call_address;
@@ skipping 913 matching lines @@
     __ push(ip);
     __ b(&done);
     ASSERT(masm()->pc_offset() - start == table_entry_size_);
   }
   __ bind(&done);
 }
 
 #undef __
 
 } }  // namespace v8::internal