Clean up debugger flags.

src/arm64/macro-assembler-arm64.cc

Index: src/arm64/macro-assembler-arm64.cc
diff --git a/src/arm64/macro-assembler-arm64.cc b/src/arm64/macro-assembler-arm64.cc
index 40b0782ac7908dad6c6e1826fd9b65dc5f26983b..809821abe472d5e9f4467a0902de15fde532e198 100644
--- a/src/arm64/macro-assembler-arm64.cc
+++ b/src/arm64/macro-assembler-arm64.cc
@@ -2982,8 +2982,8 @@ void MacroAssembler::TruncateHeapNumberToI(Register result,
 }
 
 
-void MacroAssembler::Prologue(PrologueFrameMode frame_mode) {
-  if (frame_mode == BUILD_STUB_FRAME) {
+void MacroAssembler::Prologue(CompilationInfo* info) {
+  if (info->IsStub()) {
     ASSERT(StackPointer().Is(jssp));
     UseScratchRegisterScope temps(this);
     Register temp = temps.AcquireX();
@@ -2993,7 +2993,7 @@ void MacroAssembler::Prologue(PrologueFrameMode frame_mode) {
     __ Push(lr, fp, cp, temp);
     __ Add(fp, jssp, StandardFrameConstants::kFixedFrameSizeFromFp);
   } else {
-    if (isolate()->IsCodePreAgingActive()) {
+    if (info->IsCodePreAgingActive()) {
       Code* stub = Code::GetPreAgedCodeAgeStub(isolate());
       __ EmitCodeAgeSequence(stub);
     } else {