progress and some refactoring

primitives/symbol.js

@@ -0,0 +1,8 @@
+// The functions are only defined here. For their types, see lib/symbol.js
+
+// The point of having an explicit constructor for SymbolT, is that we can later swap it out for something that is (de-)serializable.
+export const constructSymbol = name => Symbol(name);
+
+export const getName = symbol => symbol.description;
+
+export const eqSymbol = a => b => a === b;