Update createRandomTest.cpp to use new VM construction method

libevm/VM.h

@@ -52,11 +52,10 @@ public:
 	bytes const& memory() const { return m_temp; }
 	u256s const& stack() const { return m_stack; }
 
+private:
 	friend VMFace;
 	explicit VM(u256 _gas = 0): VMFace(_gas) {}
 
-private:
-
 	template <class Ext>
 	bytesConstRef go(Ext& _ext, OnOpFunc const& _onOp, uint64_t _steps);
 

test/createRandomTest.cpp

@@ -97,7 +97,9 @@ void doMyTests(json_spirit::mValue& v)
 		assert(o.count("pre") > 0);
 		assert(o.count("exec") > 0);
 
-		eth::VM vm;
+
+		auto vmObj = eth::VMFace::create(eth::VMFace::Interpreter);
+		auto& vm = *vmObj;
 		test::FakeExtVM fev;
 		fev.importEnv(o["env"].get_obj());
 		fev.importState(o["pre"].get_obj());