Third cut to simplify parsing phase. Now DROP EVENT works.

Overloaded few functions to be able to use either sp_name or pass two LEX_STRINGs
instead of a Event_timed pointer. This is transitional and eventually the old
functions will be removed. For now DROP EVENT also works, does not need anymore
a parsing object (Event_timed) and definer initialization because everyone who
has EVENT_ACL can drop events, and this is checked on execution time in sql_parse.cc
from the security context, as it should be.

Second cut of separating parsing phase from execution phase
Separate Event_timed from parsing phase and introducing Event_parse_data.

Infrastructure built. Added the  foreseen files and change Makefile.am/CMakeLists.txt
accordingly.

into lmy004.:/work/mysql-5.1-runtime-bug16992

into lmy004.:/work/mysql-5.1-runtime-bug18897

alter event rename".

ALTER EVENT ... RENAME statement hasn't checked privileges
for the target database. It also caused server crashes when
target database was not specified explicitly and there was
no current database.

This fix adds missing privilege check and check for the case
when target database is not specified explicitly or implicitly.

into  mysql.com:/home/cps/mysql/devel/5.1-curs-bug

into lmy004.:/work/mysql-5.1-runtime-bug20624

(fix for bug#20290 Event mechanism incompatible with embedded server, but tests tried)

into  mysql.com:/mnt/raid/alik/MySQL/devel/5.1-rt-bug20294

into  mysql.com:/mnt/raid/alik/MySQL/devel/5.1-rt-bug20294

im_instance_conf fails randomly.

(this is a change to a faulty test file)

into  mysql.com:/home/bk/fix-mysql-5.1

Introduced EVENTS.EVENT_DEFINITION, like ROUTINES.ROUTINE_DEFINITION
Hence, the contents of the current EVENTS.EVENT_BODY become the contents
of EVENT_DEFINITION. EVENT_BODY will contain always, for now, "SQL" (wo
quotes).

into  bk-internal.mysql.com:/data0/bk/mysql-5.1-kt

into  dator5.(none):/home/pappa/bug19281

into  bk-internal.mysql.com:/data0/bk/mysql-5.1-kt

into  dator5.(none):/home/pappa/bug19281

into  clam.ndb.mysql.com:/space/pekka/ndb/version/my51-bug18102

Need to flag when a copy is needed to not overwrite a create_info
object connected to the lex structure

into  mysql.com:/usr/home/ram/work/mysql-5.1

into  bk-internal.mysql.com:/data0/bk/mysql-5.1-kt

into  mysql.com:/mnt/raid/alik/MySQL/devel/5.1-rt-bug20294

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-5.1-merge

fails randomly.

The problem is that the test was affected by other running
test-suites on the same box. The fix affects the test only,
no code touched.

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-5.1-merge

into  mysql.com:/users/lthalmann/bk/MERGE/mysql-5.0-merge

into  mysql.com:/home/marty/MySQL/mysql-5.1

into  poseidon.ndb.mysql.com:/home/tomas/mysql-5.1-new-ndb

into  mysql.com:/home/marty/MySQL/mysql-5.1