Optimize loads from variables that might be shadowed by variables...

src/contexts.cc

Index: src/contexts.cc
===================================================================
--- src/contexts.cc	(revision 1289)
+++ src/contexts.cc	(working copy)
@@ -134,10 +134,12 @@
         // declared variables that were introduced through declaration nodes)
         // must not appear here.
         switch (mode) {
-          case Variable::INTERNAL :  // fall through
-          case Variable::VAR      : *attributes = NONE; break;
-          case Variable::CONST    : *attributes = READ_ONLY; break;
-          case Variable::DYNAMIC  : UNREACHABLE(); break;
+          case Variable::INTERNAL:  // fall through
+          case Variable::VAR: *attributes = NONE; break;
+          case Variable::CONST: *attributes = READ_ONLY; break;
+          case Variable::DYNAMIC: UNREACHABLE(); break;
+          case Variable::DYNAMIC_GLOBAL: UNREACHABLE(); break;
+          case Variable::DYNAMIC_LOCAL: UNREACHABLE(); break;
           case Variable::TEMPORARY: UNREACHABLE(); break;
         }
         return context;