Debugger: ensure that functions with debug info have code with break slots.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 42828c5152deb835dd3e74e96faf702e372a961f..3414007ee28c14238cf7f94e0c9784884552bebd 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -6857,6 +6857,9 @@ class SharedFunctionInfo: public HeapObject {
                                                reason));
   }
 
+  // Tells whether this function should be subject to debugging.
+  inline bool IsSubjectToDebugging();
+
   // Check whether or not this function is inlineable.
   bool IsInlineable();
 
@@ -7249,12 +7252,6 @@ class JSFunction: public JSObject {
   // Tells whether this function is builtin.
   inline bool IsBuiltin();
 
-  // Tells whether this function is defined in a native script.
-  inline bool IsFromNativeScript();
-
-  // Tells whether this function is defined in an extension script.
-  inline bool IsFromExtensionScript();
-
   // Tells whether this function should be subject to debugging.
   inline bool IsSubjectToDebugging();