Add optimized compiler support for generic global loads....

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
===================================================================
--- src/arm/lithium-arm.cc	(revision 7145)
+++ src/arm/lithium-arm.cc	(working copy)
@@ -1716,6 +1716,12 @@
 }
 
 
+LInstruction* LChunkBuilder::DoLoadGlobalGeneric(HLoadGlobalGeneric* instr) {
+  LLoadGlobalGeneric* result = new LLoadGlobalGeneric;
+  return MarkAsCall(DefineFixed(result, r0), instr);
+}
+
+
 LInstruction* LChunkBuilder::DoStoreGlobal(HStoreGlobal* instr) {
   if (instr->check_hole_value()) {
     LOperand* temp = TempRegister();