[V8] Added Script::is_debugger_script flag for embedders

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 51755054cb00a3513faae0b6c5684ce5473f105e..19b17270eafd0aeac70850b15e4d1c00b5f6a211 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -6585,6 +6585,12 @@ class Script: public Struct {
   inline CompilationState compilation_state();
   inline void set_compilation_state(CompilationState state);
 
+  // [is_debugger_script]: An opaque boolean set by the embedder via
+  // ScriptOrigin, and used by the embedder to make decisions about the
+  // script's origin. V8 just passes this through. Encoded in
+  // the 'flags' field.
+  DECL_BOOLEAN_ACCESSORS(is_debugger_script)
+
   // [is_shared_cross_origin]: An opaque boolean set by the embedder via
   // ScriptOrigin, and used by the embedder to make decisions about the
   // script's level of privilege. V8 just passes this through. Encoded in
@@ -6641,7 +6647,8 @@ class Script: public Struct {
   // Bit positions in the flags field.
   static const int kCompilationTypeBit = 0;
   static const int kCompilationStateBit = 1;
-  static const int kIsSharedCrossOriginBit = 2;
+  static const int kIsDebuggerScriptBit = 2;
+  static const int kIsSharedCrossOriginBit = 3;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Script);
 };