[builtins] Construct builtin frame in String/Number ctors

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 ea74022771e38b7132b04dbe729ef656874556df..2fbd1cf1f8afd7e96221a6bbe20e82dac39b578e 100644
--- a/src/arm/macro-assembler-arm.cc
+++ b/src/arm/macro-assembler-arm.cc
@@ -1284,6 +1284,19 @@ int MacroAssembler::LeaveFrame(StackFrame::Type type) {
   return frame_ends;
 }
 
+void MacroAssembler::EnterBuiltinFrame(Register context, Register target,
+                                       Register argc) {
+  Push(lr, fp, context, target);
+  add(fp, sp, Operand(2 * kPointerSize));
+  Push(argc);
+}
+
+void MacroAssembler::LeaveBuiltinFrame(Register context, Register target,
+                                       Register argc) {
+  Pop(argc);
+  Pop(lr, fp, context, target);
+}
+
 void MacroAssembler::EnterExitFrame(bool save_doubles, int stack_space,
                                     StackFrame::Type frame_type) {
   DCHECK(frame_type == StackFrame::EXIT ||