[inspector] migrate set/remove BreakPoint to debug-interface.h

src/objects-debug.cc

Index: src/objects-debug.cc
diff --git a/src/objects-debug.cc b/src/objects-debug.cc
index 5d032d152e7fa6b0b06c4831e56cb984cd3230ef..120976e586e48dbc2d8705d76bab49b057c5201c 100644
--- a/src/objects-debug.cc
+++ b/src/objects-debug.cc
@@ -1263,6 +1263,12 @@ void DebugInfo::DebugInfoVerify() {
   VerifyPointer(break_points());
 }
 
+void BreakPoint::BreakPointVerify() {
+  CHECK(IsBreakPoint());
+  CHECK(condition()->IsString());
+  VerifyPointer(condition());
+  VerifyPointer(data());
+}
 
 void BreakPointInfo::BreakPointInfoVerify() {
   CHECK(IsBreakPointInfo());