Very first steps for a debugger

runtime/vm/disassembler_ia32.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/disassembler.h"
 
 #include "vm/allocation.h"
@@ skipping 380 matching lines @@
   char addr_buffer[32];
   OS::SNPrint(addr_buffer, sizeof(addr_buffer), "%p", addr);
   Print(addr_buffer);
   // Try to print as heap object or stub name
   if (!Isolate::Current()->heap()->CodeContains(addr) &&
       Isolate::Current()->heap()->Contains(addr - kHeapObjectTag)) {
     Object& obj = Object::Handle(reinterpret_cast<RawObject*>(addr));
     if (obj.IsArray()) {
       const Array& arr = Array::CheckedHandle(obj.raw());
       intptr_t len = arr.Length();
-      if (len > 5) len = 5;  // At max print first 5 elements.
+      if (len > 5) len = 5;  // Print a max of 5 elements.
       Print("  Array[");
       int i = 0;
       while (i < len) {
         obj = arr.At(i);
         if (i > 0) Print(", ");
         Print(obj.ToCString());
         i++;
       }
       if (i < arr.Length()) Print(", ...");
       Print("]");
@@ skipping 1109 matching lines @@
 
 const char* Disassembler::RegisterName(Register reg) {
   ASSERT(0 <= reg);
   ASSERT(reg < kMaxCPURegisters);
   return (cpu_regs[reg]);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32