More precise break points and stepping when debugging...

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 220 matching lines @@
       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
   }
 }
 
 
 void FullCodeGenerator::Apply(Expression::Context context, Register reg) {
   switch (context) {
     case Expression::kUninitialized:
       UNREACHABLE();
 
@@ skipping 2880 matching lines @@
   __ mov(r1, Operand(r1, ASR, 1));  // Un-smi-tag value.
   __ add(pc, r1, Operand(masm_->CodeObject()));
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM