A CL that only removes dead code from the VM compiler.

runtime/vm/intermediate_language.h

Index: runtime/vm/intermediate_language.h
===================================================================
--- runtime/vm/intermediate_language.h	(revision 20161)
+++ runtime/vm/intermediate_language.h	(working copy)
@@ -4445,11 +4445,6 @@
     return locations_[index];
   }
 
-  Location* LocationSlotAt(intptr_t index) const {
-    ASSERT((index >= 0) && (index < values_.length()));
-    return &locations_[index];
-  }
-
   // The use index is the index in the flattened environment.
   Value* ValueAtUseIndex(intptr_t index) const {
     const Environment* env = this;