Fix an assertion failure in stack trace construction.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 58554bc16c660a4866a3abecbb3f4f17c37fb0c2..be45d3e82eacbe54ad450e67c1a43e30c190050e 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -870,13 +870,11 @@ void HGraph::EliminateRedundantPhis() {
       }
       uses_to_replace.Rewind(0);
       block->RemovePhi(phi);
-    } else if (phi->HasNoUses() &&
-               !phi->HasReceiverOperand() &&
-               FLAG_eliminate_dead_phis) {
-      // We can't eliminate phis that have the receiver as an operand
-      // because in case of throwing an error we need the correct
-      // receiver value in the environment to construct a corrent
-      // stack trace.
+    } else if (FLAG_eliminate_dead_phis && phi->HasNoUses() &&
+               !phi->IsReceiver()) {
+      // We can't eliminate phis in the receiver position in the environment
+      // because in case of throwing an error we need this value to
+      // construct a stack trace.
       block->RemovePhi(phi);
       block->RecordDeletedPhi(phi->merged_index());
     }