Remove "using namespace" from header and move Instruction to dev::eth.

libsolidity/codegen/ArrayUtils.cpp

@@ -32,8 +32,9 @@
 
 using namespace std;
 using namespace dev;
+using namespace dev::eth;
 using namespace langutil;
-using namespace solidity;
+using namespace dev::solidity;
 
 void ArrayUtils::copyArrayToStorage(ArrayType const& _targetType, ArrayType const& _sourceType) const
 {

libsolidity/codegen/CompilerContext.cpp

@@ -53,11 +53,9 @@
 
 using namespace std;
 using namespace langutil;
-
-namespace dev
-{
-namespace solidity
-{
+using namespace dev::eth;
+using namespace dev;
+using namespace dev::solidity;
 
 void CompilerContext::addStateVariable(
 	VariableDeclaration const& _declaration,
@@ -554,6 +552,3 @@ void CompilerContext::FunctionCompilationQueue::startFunction(Declaration const&
 		m_functionsToCompile.pop();
 	m_alreadyCompiledFunctions.insert(&_function);
 }
-
-}
-}

libsolidity/codegen/CompilerContext.h

@@ -203,7 +203,7 @@ public:
 
 	/// Append elements to the current instruction list and adjust @a m_stackOffset.
 	CompilerContext& operator<<(eth::AssemblyItem const& _item) { m_asm->append(_item); return *this; }
-	CompilerContext& operator<<(Instruction _instruction) { m_asm->append(_instruction); return *this; }
+	CompilerContext& operator<<(dev::eth::Instruction _instruction) { m_asm->append(_instruction); return *this; }
 	CompilerContext& operator<<(u256 const& _value) { m_asm->append(_value); return *this; }
 	CompilerContext& operator<<(bytes const& _data) { m_asm->append(_data); return *this; }
 

libsolidity/codegen/CompilerUtils.cpp

@@ -31,11 +31,9 @@
 
 using namespace std;
 using namespace langutil;
-
-namespace dev
-{
-namespace solidity
-{
+using namespace dev;
+using namespace dev::eth;
+using namespace dev::solidity;
 
 unsigned const CompilerUtils::dataStartOffset = 4;
 size_t const CompilerUtils::freeMemoryPointer = 64;
@@ -1414,6 +1412,3 @@ unsigned CompilerUtils::prepareMemoryStore(Type const& _type, bool _padToWords)
 
 	return numBytes;
 }
-
-}
-}

libsolidity/codegen/ContractCompiler.cpp

@@ -39,6 +39,7 @@
 using namespace std;
 using namespace dev;
 using namespace langutil;
+using namespace dev::eth;
 using namespace dev::solidity;
 
 namespace

libsolidity/codegen/ExpressionCompiler.cpp

@@ -39,11 +39,10 @@
 
 using namespace std;
 using namespace langutil;
+using namespace dev;
+using namespace dev::eth;
+using namespace dev::solidity;
 
-namespace dev
-{
-namespace solidity
-{
 
 void ExpressionCompiler::compile(Expression const& _expression)
 {
@@ -2269,6 +2268,3 @@ CompilerUtils ExpressionCompiler::utils()
 {
 	return CompilerUtils(m_context);
 }
-
-}
-}

libsolidity/codegen/LValue.cpp

@@ -29,8 +29,9 @@
 
 using namespace std;
 using namespace dev;
+using namespace dev::eth;
+using namespace dev::solidity;
 using namespace langutil;
-using namespace solidity;
 
 
 StackVariable::StackVariable(CompilerContext& _compilerContext, VariableDeclaration const& _declaration):