More goto improvements.

jedi/api/classes.py

@@ -590,16 +590,18 @@ class Definition(use_metaclass(CachedMetaClass, BaseDefinition)):
         elif isinstance(d, pr.Module):
             # only show module name
             d = 'module %s' % self.module_name
-        else:
+        elif isinstance(d, pr.Param):
+            d = d.get_code()
+        else:  # ExprStmt
             first_leaf = d.first_leaf()
             # Remove the prefix, because that's not what we want for get_code
             # here.
             old, first_leaf.prefix = first_leaf.prefix, ''
             try:
-                d = d.get_code().replace('\n', '').replace('\r', '')
+                d = d.get_code()
             finally:
                 first_leaf.prefix = old
-        return d
+        return d.replace('\n', '').replace('\r', '')
 
     @property
     def desc_with_module(self):

jedi/evaluate/__init__.py

@@ -454,7 +454,8 @@ class Evaluator(object):
             return iterable.unite(self.find_types(typ, name, is_goto=True)
                                   for typ in types)
         else:
-            return self.find_types(scope, name, search_global=True, is_goto=True)
+            return self.find_types(scope, name, name.start_pos,
+                                   search_global=True, is_goto=True)
         if isinstance(stmt, pr.Import):
             # Nowhere to goto for aliases
             if stmt.alias == call_path[0]:

jedi/parser/representation.py

@@ -1469,6 +1469,9 @@ class Param(Base):
     def parent_function(self):
         return self.get_parent_until(IsScope)
 
+    def get_code(self):
+        return self.tfpdef.get_code()
+
     def __init__old(self):
         kwargs.pop('names_are_set_vars', None)
         super(Param, self).__init__(*args, names_are_set_vars=True, **kwargs)