Uniform and precise source positions for inlining

src/crankshaft/hydrogen-representation-changes.cc

Index: src/crankshaft/hydrogen-representation-changes.cc
diff --git a/src/crankshaft/hydrogen-representation-changes.cc b/src/crankshaft/hydrogen-representation-changes.cc
index 0b7ac2cc1d4bf2858fc42a22d16639415ca33d08..4d74df4952838ae154c42330256857ef3fd5cdcc 100644
--- a/src/crankshaft/hydrogen-representation-changes.cc
+++ b/src/crankshaft/hydrogen-representation-changes.cc
@@ -41,12 +41,6 @@ void HRepresentationChangesPhase::InsertRepresentationChangeForUse(
     new_value = new (graph()->zone())
         HChange(value, to, is_truncating_to_smi, is_truncating_to_int,
                 is_truncating_to_number);
-    if (!use_value->operand_position(use_index).IsUnknown()) {
-      new_value->set_position(use_value->operand_position(use_index));
-    } else {
-      DCHECK(!FLAG_hydrogen_track_positions ||
-             !graph()->info()->IsOptimizing());
-    }
   }
 
   new_value->InsertBefore(next);