Various improvements regarding the way we print code code comments.

src/lithium.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 323 matching lines @@
           label->set_replacement(GetLabel(goto_instr->block_id()));
         }
       }
     }
   }
 }
 
 
 void LChunk::AddInstruction(LInstruction* instr, HBasicBlock* block) {
   LInstructionGap* gap = new(graph_->zone()) LInstructionGap(block);
+  gap->set_hydrogen_value(instr->hydrogen_value());
   int index = -1;
   if (instr->IsControl()) {
     instructions_.Add(gap, zone());
     index = instructions_.length();
     instructions_.Add(instr, zone());
   } else {
     index = instructions_.length();
     instructions_.Add(instr, zone());
     instructions_.Add(gap, zone());
   }
@@ skipping 132 matching lines @@
       } else {
         spill_slot_count_++;
       }
     }
     iterator.Advance();
   }
 }
 
 
 } }  // namespace v8::internal