Use "none" and "full" optimizer settings in the optimizer tests.

test/ExecutionFramework.h

@@ -25,6 +25,8 @@
 #include <test/Options.h>
 #include <test/RPCSession.h>
 
+#include <libsolidity/interface/OptimiserSettings.h>
+
 #include <liblangutil/EVMVersion.h>
 
 #include <libdevcore/FixedHash.h>
@@ -265,8 +267,7 @@ protected:
 	};
 
 	langutil::EVMVersion m_evmVersion;
-	unsigned m_optimizeRuns = 200;
-	bool m_optimize = false;
+	solidity::OptimiserSettings m_optimiserSettings = solidity::OptimiserSettings::minimal();
 	bool m_showMessages = false;
 	bool m_transactionSuccessful = true;
 	Address m_sender;