Fix a bug in optimized ARM code.

runtime/vm/flow_graph_compiler_ia32.cc

Index: runtime/vm/flow_graph_compiler_ia32.cc
===================================================================
--- runtime/vm/flow_graph_compiler_ia32.cc	(revision 23168)
+++ runtime/vm/flow_graph_compiler_ia32.cc	(working copy)
@@ -1653,48 +1653,6 @@
 }
 
 
-Condition FlowGraphCompiler::FlipCondition(Condition condition) {
-  switch (condition) {
-    case EQUAL:         return EQUAL;
-    case NOT_EQUAL:     return NOT_EQUAL;
-    case LESS:          return GREATER;
-    case LESS_EQUAL:    return GREATER_EQUAL;
-    case GREATER:       return LESS;
-    case GREATER_EQUAL: return LESS_EQUAL;
-    case BELOW:         return ABOVE;
-    case BELOW_EQUAL:   return ABOVE_EQUAL;
-    case ABOVE:         return BELOW;
-    case ABOVE_EQUAL:   return BELOW_EQUAL;
-    default:
-      UNIMPLEMENTED();
-      return EQUAL;
-  }
-}
-
-
-bool FlowGraphCompiler::EvaluateCondition(Condition condition,
-                                          intptr_t left,
-                                          intptr_t right) {
-  const uintptr_t unsigned_left = static_cast<uintptr_t>(left);
-  const uintptr_t unsigned_right = static_cast<uintptr_t>(right);
-  switch (condition) {
-    case EQUAL:         return left == right;
-    case NOT_EQUAL:     return left != right;
-    case LESS:          return left < right;
-    case LESS_EQUAL:    return left <= right;
-    case GREATER:       return left > right;
-    case GREATER_EQUAL: return left >= right;
-    case BELOW:         return unsigned_left < unsigned_right;
-    case BELOW_EQUAL:   return unsigned_left <= unsigned_right;
-    case ABOVE:         return unsigned_left > unsigned_right;
-    case ABOVE_EQUAL:   return unsigned_left >= unsigned_right;
-    default:
-      UNIMPLEMENTED();
-      return false;
-  }
-}
-
-
 FieldAddress FlowGraphCompiler::ElementAddressForIntIndex(intptr_t cid,
                                                           intptr_t index_scale,
                                                           Register array,