Debugger: prepare code for debugging on a per-function basis.

src/x64/assembler-x64-inl.h

Index: src/x64/assembler-x64-inl.h
diff --git a/src/x64/assembler-x64-inl.h b/src/x64/assembler-x64-inl.h
index 1495a5ce78a95e06387f051571eba8171029e672..96e70673837b00fe7b051f25c0f0b56dabca1468 100644
--- a/src/x64/assembler-x64-inl.h
+++ b/src/x64/assembler-x64-inl.h
@@ -553,8 +553,7 @@ void RelocInfo::Visit(Isolate* isolate, ObjectVisitor* visitor) {
   } else if (RelocInfo::IsCodeAgeSequence(mode)) {
     visitor->VisitCodeAgeSequence(this);
   } else if (RelocInfo::IsDebugBreakSlot(mode) &&
-             IsPatchedDebugBreakSlotSequence() &&
-             isolate->debug()->has_break_points()) {
+             IsPatchedDebugBreakSlotSequence()) {
     visitor->VisitDebugTarget(this);
   } else if (RelocInfo::IsRuntimeEntry(mode)) {
     visitor->VisitRuntimeEntry(this);
@@ -578,8 +577,7 @@ void RelocInfo::Visit(Heap* heap) {
     StaticVisitor::VisitInternalReference(this);
   } else if (RelocInfo::IsCodeAgeSequence(mode)) {
     StaticVisitor::VisitCodeAgeSequence(heap, this);
-  } else if (heap->isolate()->debug()->has_break_points() &&
-             RelocInfo::IsDebugBreakSlot(mode) &&
+  } else if (RelocInfo::IsDebugBreakSlot(mode) &&
              IsPatchedDebugBreakSlotSequence()) {
     StaticVisitor::VisitDebugTarget(heap, this);
   } else if (RelocInfo::IsRuntimeEntry(mode)) {