Use source position table for crankshaft code.

src/crankshaft/mips64/lithium-codegen-mips64.cc

Index: src/crankshaft/mips64/lithium-codegen-mips64.cc
diff --git a/src/crankshaft/mips64/lithium-codegen-mips64.cc b/src/crankshaft/mips64/lithium-codegen-mips64.cc
index 41ed95ed615da98fb4ef696dc89967103c7aa6a2..a30aff257a7a42e997b5465f82a0b0c730d2e475 100644
--- a/src/crankshaft/mips64/lithium-codegen-mips64.cc
+++ b/src/crankshaft/mips64/lithium-codegen-mips64.cc
@@ -59,6 +59,9 @@ void LCodeGen::FinishCode(Handle<Code> code) {
   DCHECK(is_done());
   code->set_stack_slots(GetTotalFrameSlotCount());
   code->set_safepoint_table_offset(safepoints_.GetCodeOffset());
+  Handle<ByteArray> source_positions =
+      source_position_table_builder_.ToSourcePositionTable();
+  code->set_source_position_table(*source_positions);
   PopulateDeoptimizationData(code);
 }
 
@@ -861,12 +864,6 @@ void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers,
 }
 
 
-void LCodeGen::RecordAndWritePosition(int position) {
-  if (position == RelocInfo::kNoPosition) return;
-  masm()->positions_recorder()->RecordPosition(position);
-}
-
-
 static const char* LabelType(LLabel* label) {
   if (label->is_loop_header()) return " (loop header)";
   if (label->is_osr_entry()) return " (OSR entry)";