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

src/top.h

Index: src/top.h
===================================================================
--- src/top.h	(revision 805)
+++ src/top.h	(working copy)
@@ -67,6 +67,10 @@
 
   // 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) \
@@ -165,6 +169,14 @@
   }
   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_; }