Various improvements regarding the way we print code code comments.

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 1314e782e5409a35f73a1e61cecce3c7dfe33437..4b7d99878f1d48a5364c6626b79032f6d39b8b63 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -192,6 +192,11 @@ const char* LArithmeticT::Mnemonic() const {
 }
 
 
+bool LGoto::HasInterestingComment(LCodeGen* gen) const {
+  return !gen->IsNextEmittedBlock(block_id());
+}
+
+
 void LGoto::PrintDataTo(StringStream* stream) {
   stream->Add("B%d", block_id());
 }