make use of C++ = default constructor declarations as well as more non-static member initialization syntax.

libyul/backends/evm/AbstractAssembly.h

@@ -55,7 +55,7 @@ public:
 	using LabelID = size_t;
 	using SubID = size_t;
 
-	virtual ~AbstractAssembly() {}
+	virtual ~AbstractAssembly() = default;
 
 	/// Set a new source location valid starting from the next instruction.
 	virtual void setSourceLocation(langutil::SourceLocation const& _location) = 0;

libyul/backends/evm/EVMAssembly.h

@@ -38,7 +38,7 @@ class EVMAssembly: public AbstractAssembly
 {
 public:
 	explicit EVMAssembly(bool _evm15 = false): m_evm15(_evm15) { }
-	virtual ~EVMAssembly() {}
+	virtual ~EVMAssembly() = default;
 
 	/// Set a new source location valid starting from the next instruction.
 	void setSourceLocation(langutil::SourceLocation const& _location) override;

libyul/backends/evm/EVMDialect.cpp

@@ -38,7 +38,7 @@ using namespace dev::solidity;
 
 
 EVMDialect::EVMDialect(AsmFlavour _flavour, bool _objectAccess):
-	Dialect(_flavour), m_objectAccess(_objectAccess)
+	Dialect{_flavour}, m_objectAccess(_objectAccess)
 {
 	// The EVM instructions will be moved to builtins at some point.
 	if (!m_objectAccess)