Changed mysql-test to print warnings for not existing table to DROP TABLE

Cleaned up test; Removed wrong DROP TABLE commands and use standard table and database names.
changed store_warning() -> push_warning_print()

mysql-test/t/handler.test

@@ -2,7 +2,10 @@
 # test of HANDLER ...
 #
 
+--disable_warnings
 drop table if exists t1;
+--enable_warnings
+
 create table t1 (a int, b char(10), key a(a), key b(a,b));
 insert into t1 values
 (17,"ddd"),(18,"eee"),(19,"fff"),(19,"yyy"),