Add id_to_symbol table to SymbolTable

schala-lang/language/src/symbol_table/mod.rs

@@ -123,6 +123,9 @@ pub struct SymbolTable {
     /// some basic information about what that symbol is and (ideally) references to other tables
     /// (e.g. typechecking tables) with more information about that symbol.
     fqsn_to_symbol: HashMap<Fqsn, Symbol>,
+
+    //TODO this should probably eventually replace the pair of id_to_fqsn/fqsn_to_symbol
+    id_to_symbol: HashMap<ItemId, Symbol>,
 }
 
 impl SymbolTable {
@@ -133,6 +136,7 @@ impl SymbolTable {
             types: NameTable::new(),
             id_to_fqsn: HashMap::new(),
             fqsn_to_symbol: HashMap::new(),
+            id_to_symbol: HashMap::new(),
         }
     }