Shader: Remove ShaderNode::GetExpressionType (replaced by visitor) and minor stuff

src/Nazara/Shader/ShaderNodes.cpp

@@ -13,11 +13,6 @@ namespace Nz::ShaderNodes
 {
 	Node::~Node() = default;
 
-	ExpressionCategory Expression::GetExpressionCategory() const
-	{
-		return ExpressionCategory::RValue;
-	}
-
 	void ExpressionStatement::Visit(ShaderAstVisitor& visitor)
 	{
 		visitor.Visit(*this);
@@ -48,11 +43,6 @@ namespace Nz::ShaderNodes
 	}
 
 
-	ExpressionCategory Identifier::GetExpressionCategory() const
-	{
-		return ExpressionCategory::LValue;
-	}
-
 	ShaderExpressionType Identifier::GetExpressionType() const
 	{
 		assert(var);
@@ -64,11 +54,6 @@ namespace Nz::ShaderNodes
 		visitor.Visit(*this);
 	}
 
-	ExpressionCategory AccessMember::GetExpressionCategory() const
-	{
-		return structExpr->GetExpressionCategory();
-	}
-
 	ShaderExpressionType AccessMember::GetExpressionType() const
 	{
 		return exprType;
@@ -231,11 +216,6 @@ namespace Nz::ShaderNodes
 	}
 
 
-	ExpressionCategory SwizzleOp::GetExpressionCategory() const
-	{
-		return expression->GetExpressionCategory();
-	}
-
 	ShaderExpressionType SwizzleOp::GetExpressionType() const
 	{
 		const ShaderExpressionType& exprType = expression->GetExpressionType();