More precise break points and stepping when debugging...

src/arm/codegen-arm.cc

 // Copyright 2010 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 368 matching lines @@
       int32_t sp_delta = (scope()->num_parameters() + 1) * kPointerSize;
       masm_->add(sp, sp, Operand(sp_delta));
       masm_->Jump(lr);
 
 #ifdef DEBUG
       // Check that the size of the code used for returning matches what is
       // expected by the debugger. If the sp_delts above cannot be encoded in
       // the add instruction the add will generate two instructions.
       int return_sequence_length =
           masm_->InstructionsGeneratedSince(&check_exit_codesize);
-      CHECK(return_sequence_length == Assembler::kJSReturnSequenceLength ||
-            return_sequence_length == Assembler::kJSReturnSequenceLength + 1);
+      CHECK(return_sequence_length ==
+            Assembler::kJSReturnSequenceInstructions ||
+            return_sequence_length ==
+            Assembler::kJSReturnSequenceInstructions + 1);
 #endif
     }
   }
 
   // Adjust for function-level loop nesting.
   ASSERT(loop_nesting_ == info->loop_nesting());
   loop_nesting_ = 0;
 
   // Code generation state must be reset.
   ASSERT(!has_cc());
@@ skipping 10135 matching lines @@
   __ bind(&string_add_runtime);
   __ TailCallRuntime(Runtime::kStringAdd, 2, 1);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM