Various improvements regarding the way we print code code comments.

src/mips/lithium-mips.cc

Index: src/mips/lithium-mips.cc
diff --git a/src/mips/lithium-mips.cc b/src/mips/lithium-mips.cc
index 5c0b85e2f51c63bd862dbd33b2ce1212dd7211d8..fb8826b7f358eb0638205fd150593077c2d64b38 100644
--- a/src/mips/lithium-mips.cc
+++ b/src/mips/lithium-mips.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());
 }