Split simplification rules into two functions.

libevmasm/SimplificationRules.h

@@ -26,6 +26,8 @@
 #include <libevmasm/ExpressionClasses.h>
 #include <libevmasm/SimplificationRule.h>
 
+#include <boost/noncopyable.hpp>
+
 #include <functional>
 #include <vector>
 
@@ -53,6 +55,10 @@ public:
 		ExpressionClasses const& _classes
 	);
 
+	/// Checks whether the rulelist is non-empty. This is usually enforced
+	/// by the constructor, but we had some issues with static initialization.
+	bool isInitialized() const;
+
 private:
 	void addRules(std::vector<SimplificationRule<Pattern>> const& _rules);
 	void addRule(SimplificationRule<Pattern> const& _rule);