Refactor SharedFunctionInfo::IsBuiltin.

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 2f10caf01cf6fdaae4f187917b053f2767769723..d7b13e1feb3576eadab8ad571b25863e8e743680 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -7105,11 +7105,6 @@ class Script: public Struct {
   inline CompilationState compilation_state();
   inline void set_compilation_state(CompilationState state);
 
-  // [hide_source]: determines whether the script source can be exposed as
-  // function source. Encoded in the 'flags' field.
-  inline bool hide_source();
-  inline void set_hide_source(bool value);
-
   // [origin_options]: optional attributes set by the embedder via ScriptOrigin,
   // and used by the embedder to make decisions about the script. V8 just passes
   // this through. Encoded in the 'flags' field.
@@ -7210,8 +7205,7 @@ class Script: public Struct {
   // Bit positions in the flags field.
   static const int kCompilationTypeBit = 0;
   static const int kCompilationStateBit = 1;
-  static const int kHideSourceBit = 2;
-  static const int kOriginOptionsShift = 3;
+  static const int kOriginOptionsShift = 2;
   static const int kOriginOptionsSize = 3;
   static const int kOriginOptionsMask = ((1 << kOriginOptionsSize) - 1)
                                         << kOriginOptionsShift;
@@ -7727,8 +7721,8 @@ class SharedFunctionInfo: public HeapObject {
   // Tells whether this function should be subject to debugging.
   inline bool IsSubjectToDebugging();
 
-  // Whether this function is defined in native code or extensions.
-  inline bool IsBuiltin();
+  // Whether this function is defined in user-provided JavaScript code.
+  inline bool IsUserJavaScript();
 
   // Check whether or not this function is inlineable.
   bool IsInlineable();