Adds a test to check_style.sh to check for spaces before colon (:) in range based for loops.

solc/CommandLineInterface.cpp

@@ -1102,8 +1102,7 @@ void CommandLineInterface::handleAst(string const& _argStr)
 		for (auto const& sourceCode: m_sourceCodes)
 			asts.push_back(&m_compiler->ast(sourceCode.first));
 		map<ASTNode const*, eth::GasMeter::GasConsumption> gasCosts;
-		for (auto const& contract : m_compiler->contractNames())
-		{
+		for (auto const& contract: m_compiler->contractNames())
 			if (auto const* assemblyItems = m_compiler->runtimeAssemblyItems(contract))
 			{
 				auto ret = GasEstimator::breakToStatementLevel(
@@ -1114,8 +1113,6 @@ void CommandLineInterface::handleAst(string const& _argStr)
 					gasCosts[it.first] += it.second;
 			}
 
-		}
-
 		bool legacyFormat = !m_args.count(g_argAstCompactJson);
 		if (m_args.count(g_argOutputDir))
 		{