extend eval language w/ identifier disambiguators - used to pick amongst many identically-named things. for instance, local_static#0 will match the first local_static, local_static#1 will match the second, etc.

src/eval/eval_core.h

@@ -262,7 +262,8 @@ struct E_Expr
   E_TypeKey type_key;
   E_Value value;
   String8 string;
-  String8 qualifier;
+  String8 qualifier;
+  String8 disambiguator;
   String8 bytecode;
 };