Post post merge fix. Made the broken ip test work again.

sql/sp_head.cc:
  Added some more DBUG output.
sql/sp_pcontext.cc:
  Post post merge fix.

mysql-test/r/sp.result

@@ -484,6 +484,12 @@ set p = p+2;
 end;
 end while;
 end;
+call ip(200);
+select * from primes where i=45 or i=100 or i=199;
+i	p
+45	211
+100	557
+199	1229
 drop table primes;
 drop procedure opp;
 drop procedure ip;

mysql-test/t/sp.test

@@ -564,11 +564,10 @@ end|
 
 # This isn't the fastest way in the world to compute prime numbers, so
 # don't be too ambition. ;-)
-#QQ Something broke after the last merge. :-(  /2003-03-19
-#QQ call ip(200)|
+call ip(200)|
 # We don't want to select the entire table here, just pick a few
 # examples.
-#QQ select * from primes where i=45 or i=100 or i=199|
+select * from primes where i=45 or i=100 or i=199|
 drop table primes|
 drop procedure opp|
 drop procedure ip|

sql/sp_head.cc

@@ -50,10 +50,15 @@ sp_map_result_type(enum enum_field_types type)
 static Item *
 eval_func_item(THD *thd, Item *it, enum enum_field_types type)
 {
+  DBUG_ENTER("eval_func_item");
   it= it->this_item();
+  DBUG_PRINT("info", ("type: %d", type));
 
   if (it->fix_fields(thd, 0, NULL))
-    return it;			// Shouldn't happen?
+  {
+    DBUG_PRINT("info", ("fix_fields() failed"));
+    DBUG_RETURN(it);		// Shouldn't happen?
+  }
 
   /* QQ How do we do this? Is there some better way? */
   if (type == MYSQL_TYPE_NULL)
@@ -62,9 +67,11 @@ eval_func_item(THD *thd, Item *it, enum enum_field_types type)
   {
     switch (sp_map_result_type(type)) {
     case INT_RESULT:
+      DBUG_PRINT("info", ("INT_RESULT: %d", it->val_int()));
       it= new Item_int(it->val_int());
       break;
     case REAL_RESULT:
+      DBUG_PRINT("info", ("REAL_RESULT: %g", it->val()));
       it= new Item_real(it->val());
       break;
     default:
@@ -73,6 +80,7 @@ eval_func_item(THD *thd, Item *it, enum enum_field_types type)
 	String tmp(buffer, sizeof(buffer), it->charset());
 	String *s= it->val_str(&tmp);
 
+	DBUG_PRINT("info", ("default result: %*s", s->length(), s->c_ptr_quick()))
 	it= new Item_string(sql_strmake(s->c_ptr_quick(), s->length()),
 			    s->length(), it->charset());
 	break;
@@ -80,7 +88,7 @@ eval_func_item(THD *thd, Item *it, enum enum_field_types type)
     }
   }
 
-  return it;
+  DBUG_RETURN(it);
 }
 
 sp_head::sp_head(LEX_STRING *name, LEX *lex)
@@ -209,7 +217,7 @@ sp_head::execute_procedure(THD *thd, List<Item> *args)
       else
       {
 	if (pvar->mode == sp_param_out)
-	  nctx->push_item(it->this_item()); // OUT
+	  nctx->push_item(NULL); // OUT
 	else
 	  nctx->push_item(eval_func_item(thd, it, pvar->type)); // IN or INOUT
 	// Note: If it's OUT or INOUT, it must be a variable.

sql/sp_pcontext.cc

@@ -65,10 +65,14 @@ sp_pcontext::find_pvar(LEX_STRING *name)
 
   while (i-- > 0)
   {
+    uint len= m_pvar[i].name->const_string()->length();
+
+    if (name->length > len)
+      len= name->length;
     if (my_strncasecmp(system_charset_info,
 		       name->str,
 		       m_pvar[i].name->const_string()->ptr(),
-		       name->length) == 0)
+		       len) == 0)
     {
       return m_pvar + i;
     }