Fixing the detection of aliased eval so that it is exact....

src/top.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 49 matching lines @@
   Address handler_;   // try-blocks are chained through the stack
   bool stack_is_cooked_;
   inline bool stack_is_cooked() { return stack_is_cooked_; }
   inline void set_stack_is_cooked(bool value) { stack_is_cooked_ = value; }
 
   // Generated code scratch locations.
   int32_t formal_count_;
 
   // Call back function to report unsafe JS accesses.
   v8::FailedAccessCheckCallback failed_access_check_callback_;
+
+  // Flag for whether we are currently in a call that the static analysis
+  // marked as a potentially direct eval.
+  bool in_potentially_direct_eval_;
 };
 
 #define TOP_ADDRESS_LIST(C) \
   C(handler_address)                   \
   C(c_entry_fp_address)                \
   C(context_address)                   \
   C(pending_exception_address)         \
   C(external_caught_exception_address)
 
 class Top {
@@ skipping 78 matching lines @@
   static Address c_entry_fp(ThreadLocalTop* thread) {
     return thread->c_entry_fp_;
   }
   static Address handler(ThreadLocalTop* thread) { return thread->handler_; }
 
   static inline Address* c_entry_fp_address() {
     return &thread_local_.c_entry_fp_;
   }
   static inline Address* handler_address() { return &thread_local_.handler_; }
 
+  static inline void set_in_potentially_direct_eval(bool b) {
+    thread_local_.in_potentially_direct_eval_ = b;
+  }
+
+  static inline bool is_in_potentially_direct_eval() {
+    return thread_local_.in_potentially_direct_eval_;
+  }
+
   // Generated code scratch locations.
   static void* formal_count_address() { return &thread_local_.formal_count_; }
 
   static void new_break(StackFrame::Id break_frame_id);
   static void set_break(StackFrame::Id break_frame_id, int break_id);
   static bool check_break(int break_id);
   static bool is_break();
   static StackFrame::Id break_frame_id();
   static int break_id();
 
@@ skipping 186 matching lines @@
 
 class ExecutionAccess BASE_EMBEDDED {
  public:
   ExecutionAccess();
   ~ExecutionAccess();
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_TOP_H_