Remove HCallGlobal and merge uses with HCallNamed.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 7d6df4f83fde768fddea14ab769e8e83f07d62d4..b19738c0e98384d30e5bf2ecf1c5e33cdd08b695 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -7824,7 +7824,7 @@ void HOptimizedGraphBuilder::VisitCall(Call* expr) {
           environment()->SetExpressionStackAt(receiver_index, global_object);
           // When the target has a custom call IC generator, use the IC,
           // because it is likely to generate better code.
-          call = PreProcessCall(New<HCallGlobal>(var->name(), argument_count));
+          call = PreProcessCall(New<HCallNamed>(var->name(), argument_count));
         } else {
           call = PreProcessCall(New<HCallKnownGlobal>(
               expr->target(), argument_count));
@@ -7834,7 +7834,7 @@ void HOptimizedGraphBuilder::VisitCall(Call* expr) {
         Push(Add<HPushArgument>(receiver));
         CHECK_ALIVE(VisitArgumentList(expr->arguments()));
 
-        call = New<HCallGlobal>(var->name(), argument_count);
+        call = New<HCallNamed>(var->name(), argument_count);
         Drop(argument_count);
       }