diff --git a/Source/JavaScriptCore/bytecode/CallLinkStatus.h b/Source/JavaScriptCore/bytecode/CallLinkStatus.h
index ef1bcb4..9511060 100644
--- a/Source/JavaScriptCore/bytecode/CallLinkStatus.h
+++ b/Source/JavaScriptCore/bytecode/CallLinkStatus.h
@@ -104,7 +104,7 @@
     bool operator!() const { return !isSet(); }
     
     bool couldTakeSlowPath() const { return m_couldTakeSlowPath; }
-    bool isClosureCall() const { return !m_callTarget; }
+    bool isClosureCall() const { return m_executable && !m_callTarget; }
     
     JSValue callTarget() const { return m_callTarget; }
     JSFunction* function() const;
@@ -115,7 +115,7 @@
     bool isProved() const { return m_isProved; }
     bool canOptimize() const { return (m_callTarget || m_executable) && !m_couldTakeSlowPath; }
     
-    void dump(PrintStream&);
+    void dump(PrintStream&) const;
     
 private:
     static CallLinkStatus computeFromLLInt(CodeBlock*, unsigned bytecodeIndex);