Merge pull request #2843 from ethereum/anonymous-cleanup

Move all file specific globals to anonymous namespace

libevmasm/PeepholeOptimiser.cpp

@@ -30,6 +30,9 @@ using namespace dev;
 
 // TODO: Extend this to use the tools from ExpressionClasses.cpp
 
+namespace
+{
+
 struct OptimiserState
 {
 	AssemblyItems const& items;
@@ -246,6 +249,8 @@ void applyMethods(OptimiserState& _state, Method, OtherMethods... _other)
 		applyMethods(_state, _other...);
 }
 
+}
+
 bool PeepholeOptimiser::optimise()
 {
 	OptimiserState state {m_items, 0, std::back_inserter(m_optimisedItems)};