Rollback trunk to 3.21.15.

src/mips/builtins-mips.cc

Index: src/mips/builtins-mips.cc
diff --git a/src/mips/builtins-mips.cc b/src/mips/builtins-mips.cc
index 400292e694b2e8146f0083bb0414fdc45b6d62bf..3aabd97b9729339432e28dd9248152f75f20636d 100644
--- a/src/mips/builtins-mips.cc
+++ b/src/mips/builtins-mips.cc
@@ -833,15 +833,14 @@ static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) {
   // The following registers must be saved and restored when calling through to
   // the runtime:
   //   a0 - contains return address (beginning of patch sequence)
-  //   a1 - isolate
+  //   a1 - function object
   RegList saved_regs =
       (a0.bit() | a1.bit() | ra.bit() | fp.bit()) & ~sp.bit();
   FrameScope scope(masm, StackFrame::MANUAL);
   __ MultiPush(saved_regs);
-  __ PrepareCallCFunction(1, 0, a2);
-  __ li(a1, Operand(ExternalReference::isolate_address(masm->isolate())));
+  __ PrepareCallCFunction(1, 0, a1);
   __ CallCFunction(
-      ExternalReference::get_make_code_young_function(masm->isolate()), 2);
+      ExternalReference::get_make_code_young_function(masm->isolate()), 1);
   __ MultiPop(saved_regs);
   __ Jump(a0);
 }