Revert of Rebase GDBJIT interface solely on JITCodeEvent

src/heap/mark-compact.cc

Index: src/heap/mark-compact.cc
diff --git a/src/heap/mark-compact.cc b/src/heap/mark-compact.cc
index 77d084266264fbd78f56bc16115818a92b223ff4..961f5b38329a1266c5b231446f63d04cac6ad0a2 100644
--- a/src/heap/mark-compact.cc
+++ b/src/heap/mark-compact.cc
@@ -261,6 +261,11 @@
 bool MarkCompactCollector::StartCompaction(CompactionMode mode) {
   if (!compacting_) {
     DCHECK(evacuation_candidates_.length() == 0);
+
+#ifdef ENABLE_GDB_JIT_INTERFACE
+    // If GDBJIT interface is active disable compaction.
+    if (FLAG_gdbjit) return false;
+#endif
 
     CollectEvacuationCandidates(heap()->old_pointer_space());
     CollectEvacuationCandidates(heap()->old_data_space());
@@ -3218,6 +3223,11 @@
         }
         freed_bytes = Free<parallelism>(space, free_list, free_start, size);
         max_freed_bytes = Max(freed_bytes, max_freed_bytes);
+#ifdef ENABLE_GDB_JIT_INTERFACE
+        if (FLAG_gdbjit && space->identity() == CODE_SPACE) {
+          GDBJITInterface::RemoveCodeRange(free_start, free_end);
+        }
+#endif
       }
       HeapObject* live_object = HeapObject::FromAddress(free_end);
       DCHECK(Marking::IsBlack(Marking::MarkBitFrom(live_object)));
@@ -3247,6 +3257,11 @@
     }
     freed_bytes = Free<parallelism>(space, free_list, free_start, size);
     max_freed_bytes = Max(freed_bytes, max_freed_bytes);
+#ifdef ENABLE_GDB_JIT_INTERFACE
+    if (FLAG_gdbjit && space->identity() == CODE_SPACE) {
+      GDBJITInterface::RemoveCodeRange(free_start, p->area_end());
+    }
+#endif
   }
   p->ResetLiveBytes();