[builtins] Unify the various versions of [[Call]] with a Call builtin.

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index b05384d05257068bead0af1cc966fe4bd77cb379..96c81609be937fb1fda59a51dbccb9ec837e5a38 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -116,6 +116,12 @@ void MacroAssembler::CompareRoot(const Operand& with,
 }
 
 
+void MacroAssembler::PushRoot(Heap::RootListIndex index) {
+  DCHECK(isolate()->heap()->RootCanBeTreatedAsConstant(index));
+  Push(isolate()->heap()->root_handle(index));
+}
+
+
 void MacroAssembler::InNewSpace(
     Register object,
     Register scratch,
@@ -804,6 +810,18 @@ void MacroAssembler::AssertName(Register object) {
 }
 
 
+void MacroAssembler::AssertFunction(Register object) {
+  if (emit_debug_code()) {
+    test(object, Immediate(kSmiTagMask));
+    Check(not_equal, kOperandIsASmiAndNotAFunction);
+    Push(object);
+    CmpObjectType(object, JS_FUNCTION_TYPE, object);
+    Pop(object);
+    Check(equal, kOperandIsNotAFunction);
+  }
+}
+
+
 void MacroAssembler::AssertUndefinedOrAllocationSite(Register object) {
   if (emit_debug_code()) {
     Label done_checking;
@@ -2097,6 +2115,12 @@ void MacroAssembler::LoadContext(Register dst, int context_chain_length) {
 }
 
 
+void MacroAssembler::LoadGlobalProxy(Register dst) {
+  mov(dst, GlobalObjectOperand());
+  mov(dst, FieldOperand(dst, GlobalObject::kGlobalProxyOffset));
+}
+
+
 void MacroAssembler::LoadTransitionedArrayMapConditional(
     ElementsKind expected_kind,
     ElementsKind transitioned_kind,