Load callback data from weak cell instead of embedding it in handler.

src/arm/macro-assembler-arm.cc

Index: src/arm/macro-assembler-arm.cc
diff --git a/src/arm/macro-assembler-arm.cc b/src/arm/macro-assembler-arm.cc
index b12b3ef903e5b90f5a0b39ad33a4af7889df2206..c8fb60dafa93bb614d9afbe3701e00dbcab11b10 100644
--- a/src/arm/macro-assembler-arm.cc
+++ b/src/arm/macro-assembler-arm.cc
@@ -2279,10 +2279,15 @@ void MacroAssembler::CmpWeakValue(Register value, Handle<WeakCell> cell,
 }
 
 
-void MacroAssembler::LoadWeakValue(Register value, Handle<WeakCell> cell,
-                                   Label* miss) {
+void MacroAssembler::GetWeakValue(Register value, Handle<WeakCell> cell) {
   mov(value, Operand(cell));
   ldr(value, FieldMemOperand(value, WeakCell::kValueOffset));
+}
+
+
+void MacroAssembler::LoadWeakValue(Register value, Handle<WeakCell> cell,
+                                   Label* miss) {
+  GetWeakValue(value, cell);
   JumpIfSmi(value, miss);
 }