[builtins] Construct builtin frame in String/Number ctors

src/mips64/macro-assembler-mips64.h

Index: src/mips64/macro-assembler-mips64.h
diff --git a/src/mips64/macro-assembler-mips64.h b/src/mips64/macro-assembler-mips64.h
index c4ca80d19f35872e270028066f805ffeec9ca4ea..ccd2a3cb7541e92e2b987906e0b495d5c8424924 100644
--- a/src/mips64/macro-assembler-mips64.h
+++ b/src/mips64/macro-assembler-mips64.h
@@ -1853,6 +1853,9 @@ const Operand& rt = Operand(zero_reg), BranchDelaySlot bd = PROTECT
   void EnterFrame(StackFrame::Type type, bool load_constant_pool_pointer_reg);
   void LeaveFrame(StackFrame::Type type);
 
+  void EnterBuiltinFrame(Register context, Register target, Register argc);
+  void LeaveBuiltinFrame(Register context, Register target, Register argc);
+
   // Expects object in a0 and returns map with validated enum cache
   // in a0.  Assumes that any other register can be used as a scratch.
   void CheckEnumCache(Label* call_runtime);