Extract commonly used Parser code to new Parser component

src/Parser/Parsing/TokenPos.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <string>
+#include <functional>
+
+class TokenPos
+{
+    static const std::string EMPTY_FILENAME;
+
+public:
+    std::reference_wrapper<const std::string> m_filename;
+    int m_line;
+    int m_column;
+
+    TokenPos();
+    TokenPos(const std::string& filename, int line, int column);
+};