Shader: Cleanup and rename AST files

src/Nazara/Shader/Ast/AstExpressionVisitorExcept.cpp

@@ -0,0 +1,15 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Shader generator"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Shader/Ast/AstExpressionVisitorExcept.hpp>
+#include <Nazara/Shader/Debug.hpp>
+
+namespace Nz::ShaderAst
+{
+#define NAZARA_SHADERAST_EXPRESSION(Node) void ExpressionVisitorExcept::Visit(ShaderAst::Node& /*node*/) \
+	{ \
+		throw std::runtime_error("unexpected " #Node " node"); \
+	}
+#include <Nazara/Shader/Ast/AstNodeList.hpp>
+}