removed pr.String and pr.Number in favor of the more general pr.Literal

jedi/evaluate/iterable.py

@@ -92,14 +92,14 @@ class Array(use_metaclass(CachedMetaClass, pr.Base)):
                 if len(key_expression_list) != 1:  # cannot deal with complex strings
                     continue
                 key = key_expression_list[0]
-                if isinstance(key, pr.String):
-                    str_key = key.value
+                if isinstance(key, pr.Literal):
+                    key = key.value
                 elif isinstance(key, pr.Name):
-                    str_key = str(key)
+                    key = str(key)
                 else:
                     continue
 
-                if mixed_index == str_key:
+                if mixed_index == key:
                     index = i
                     break
             if index is None:

jedi/parser/representation.py

@@ -1069,9 +1069,7 @@ class Statement(Simple):
 
             is_literal = token_type in [tokenize.STRING, tokenize.NUMBER]
             if isinstance(tok, Name) or is_literal:
-                cls = Call
-                if is_literal:
-                    cls = String if token_type == tokenize.STRING else Number
+                cls = Literal if is_literal else Call
 
                 call = cls(self._sub_module, tok, start_pos, end_pos, self)
                 if is_chain:
@@ -1243,14 +1241,6 @@ class Literal(StatementElement):
         return "<%s: %s>" % (type(self).__name__, s)
 
 
-class String(Literal):
-    pass
-
-
-class Number(Literal):
-    pass
-
-
 class Array(StatementElement):
     """
     Describes the different python types for an array, but also empty