- Address review feedback R4: better comments, formatting

- Add strmov_overlapp.c where it's needed
- Add libevent where it is required
- Fix typo in unittest/mysys/waiting_threads-t.c
- fix xtradb C language source so that they have variable declarations before
  any operators, as it is (or was?) required in C.

libmysql/CMakeLists.txt:
  - Add strmov_overlapp.c where it's needed
sql/CMakeLists.txt:
  - Add strmov_overlapp.c where it's needed
  - Add libevent where it is required
storage/xtradb/btr/btr0cur.c:
  - fix xtradb C language source so that they have variable declarations before
    any operators, as it is (or was?) required in C.
storage/xtradb/buf/buf0buddy.c:
  - fix xtradb C language source so that they have variable declarations before
    any operators, as it is (or was?) required in C.
storage/xtradb/buf/buf0flu.c:
  - fix xtradb C language source so that they have variable declarations before
    any operators, as it is (or was?) required in C.
storage/xtradb/fil/fil0fil.c:
  - fix xtradb C language source so that they have variable declarations before
    any operators, as it is (or was?) required in C.
storage/xtradb/handler/i_s.cc:
  - fix xtradb C language source so that they have variable declarations before
    any operators, as it is (or was?) required in C.
storage/xtradb/srv/srv0srv.c:
  - fix xtradb C language source so that they have variable declarations before
    any operators, as it is (or was?) required in C.
strings/CMakeLists.txt:
  - Add strmov_overlapp.c where it's needed
unittest/mysys/waiting_threads-t.c:
  - Fix typo in unittest/mysys/waiting_threads-t.c

- Addressing review feedback, generation 4.

include/my_global.h:
  Make ALIGN_PTR's action correspond to that of ALIGN_SIZE
sql/item.cc:
  MWL#17: Table-elimination
  - Review feedback: function renames, better comments
sql/item.h:
  MWL#17: Table-elimination
  - Review feedback: function renames, better comments
sql/item_cmpfunc.cc:
  MWL#17: Table-elimination
  - Review feedback: function renames, better comments
sql/item_subselect.cc:
  MWL#17: Table-elimination
  - Review feedback: function renames, better comments
sql/item_subselect.h:
  MWL#17: Table-elimination
  - Review feedback: function renames, better comments
sql/opt_table_elimination.cc:
  MWL#17: Table-elimination
  - Addressing review feedback, generation 4: abstract everything in case
    we would need to change it for something else in the future.
sql/sql_list.h:
  MWL#17: Table-elimination
  - Introduce exchange_sort(List<T> ...) template function
sql/sql_select.cc:
  MWL#17: Table-elimination
  - Review feedback: function renames, better comments

Includes disabling PBMS (per Paul's recommendation) and test file fixes.
Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>

 - Disable PBMS in MariaDB (as per recommendation of Paul).
 - Add missing *-master.opt files to make testsuite work on case-sensitive file systems.
 - Result file updates.

Solaris build scripts under BUILD/ were changed, but Makefile.am was not updated to reflect
the new set of file names.

- Fix a trivial problem when OR-merging two multi-equalities
- Amend testsuite to provide full gcov coverage

mysql-test/r/table_elim.result:
  MWL#17: Table elimination:
  - Amend testsuite to provide full gcov coverage
mysql-test/t/table_elim.test:
  MWL#17: Table elimination:
  - Amend testsuite to provide full gcov coverage

- add process-gcov-annotations.pl script that processes .gcov files 
  according to purecov annotations in source code
- add --gcov-src-dir=subdir option to mysql-test-run so that one can
  do gcov processing only for source files in a certain directory.

- Mark gcov deadcode

- More test coverage
- Remove unused code

- Add more testcases.
- Fix trivial compile failure
- Remove handling of "column IN (one_element)". This is converted to equality 
  elsewhere

mysql-test/r/table_elim.result:
  MWL#17: Table elimination
  - Add more testcases.
  - Fix trivial compile failure
mysql-test/t/table_elim.test:
  MWL#17: Table elimination
  - Add more testcases
sql/mysqld.cc:
  MWL#17: Table elimination
  - Fix trivial compile failure
sql/opt_table_elimination.cc:
  MWL#17: Table elimination
  - Add more testcases.
  - Remove handling of "column IN (one_element)".This is converted to equality 
    elsewhere

- Add an @@optimizer_switch flag for table_elimination for debug build
- Better comments 

mysql-test/t/index_merge_myisam.test:
  MWL#17: Table elimination: last fixes
  - Add an @@optimizer_switch flag for table_elimination for debug build
sql/mysql_priv.h:
  MWL#17: Table elimination: last fixes
  - Add an @@optimizer_switch flag for table_elimination for debug build
sql/mysqld.cc:
  MWL#17: Table elimination: last fixes
  - Add an @@optimizer_switch flag for table_elimination for debug build

- Correctly handle the case where we have multi-table DELETE and a table
  that we're deleting from looks like it could be eliminated.

- Remove a piece of code that's not needed anymore.

- More testcases
- Set correct dependencies for non-bound multi-equalities.

mysql-test/r/table_elim.result:
  MWL#17: Table elimination
  - More testcases
mysql-test/t/table_elim.test:
  MWL#17: Table elimination
  - More testcases
sql/opt_table_elimination.cc:
  MWL#17: Table elimination
  - Set correct dependencies for non-bound multi-equalities.

- Multiple-equality handling

- Use Table_elimination only for functional dependency checking for
  individual objects and rename it to Func_dep_analyzer

- Better comments
- Switch from "type" enum and switch to virtual functions for member funcs.

- Code cleanup

- Switch from trying to eliminate all tables at once (which didn't work)
  to the original approach of bottom-up elimination. 

- More testcases

- More dbug printouts
- More testcases

- More comments

- Better comments
- More OOM checks

sql/sql_select.cc:
  - Remove garbage code

- Add OOM error checking

- Address review feedback: change expression analyzer used to be a copy-paste
  of ref analyzer. ref analyzer, besides doing ref analysis, also collected 
  info about keys which had sargable predicates. We didn't need that part here.

- code cleanup

- Fix trivial valgrind failures that shown up after review

- Review feedback, more variable renames 

Continue with addressing review feedback part two: 
- rename enum members
- add checking for out of memory errors on allocation

- Switch from uniform graph to bipartite graph with two kinds of nodes:
  "values" (tables and fields) and "modules" (t.col=func(...) equalities, 
  multi-equalities, unique keys, inner sides of outer joins).
- Rename functions, classes, etc.