Revert "Remove duplicate say-related functions from 00library."

This reverts commit 122dbf2.

Fixes #5409.

renpy/common/00library.rpy

@@ -303,6 +303,24 @@ init -1700 python:
     config.expensive_predict_callbacks.append(_predict_screens)
 
 
+    ##########################################################################
+    # Name-only say statements.
+
+    # This character is copied when a name-only say statement is called.
+    name_only = adv
+
+    def predict_say(who, what):
+        who = Character(who, kind=name_only)
+        try:
+            who.predict(what)
+        except Exception:
+            pass
+
+    def say(who, what, interact=True, *args, **kwargs):
+        who = Character(who, kind=name_only)
+        who(what, interact=interact, *args, **kwargs)
+
+
     ##########################################################################
     # Misc.
 

renpy/defaultstore.py

@@ -402,8 +402,9 @@ def At(d, *args):
 
                 kind=False)
 
-# This character is copied when a name-only say statement is called.
-name_only = adv
+# predict_say and who are defined in 00library.rpy, but we add default
+# versions here in case there is a problem with initialization. (And
+# for pickling purposes.)
 
 
 def predict_say(who, what):
@@ -418,6 +419,7 @@ def say(who, what, interact=True, *args, **kwargs):
     who = Character(who, kind=adv)
     who(what, *args, interact=interact, **kwargs)
 
+
 # Used by renpy.reshow_say and extend.
 _last_say_who = None
 _last_say_what = None