Use 'const' qualifier for pointrs to code used at run-time (the code must not be changed)

Cleanup IS_VAR handling

Micro optimization for the main interpreter loop

Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
Make sure the generator script also creates a newline at the end of file
Add newline at end of file to prevent compilation warning

Make sure the generator script also creates a newline at the end of file

Similar to commit d6713f39 in master

Removed EG(in_execution). If EG(currentent_execute_data) is not NULL we are executing something.

Merge mainstream 'master' branch into refactoring
During merge I had to revert:
Nikita's patch for php_splice() (it probably needs to be applyed again)
Bob Weinand's patch

Merge mainstream 'master' branch into refactoring
During merge I had to revert:
Nikita's patch for php_splice() (it probably needs to be applyed again)
Bob Weinand's patches related to constant expression handling (we need to review them carefully)
I also reverted all our attempts to support sapi/phpdbg (we didn't test it anyway)

Conflicts:
Zend/zend.h
Zend/zend_API.c
Zend/zend_ast.c
Zend/zend_compile.c
Zend/zend_compile.h
Zend/zend_constants.c
Zend/zend_exceptions.c
Zend/zend_execute.c
Zend/zend_execute.h
Zend/zend_execute_API.c
Zend/zend_hash.c
Zend/zend_highlight.c
Zend/zend_language_parser.y
Zend/zend_language_scanner.c
Zend/zend_language_scanner_defs.h
Zend/zend_variables.c
Zend/zend_vm_def.h
Zend/zend_vm_execute.h
ext/date/php_date.c
ext/dom/documenttype.c
ext/hash/hash.c
ext/iconv/iconv.c
ext/mbstring/tests/zend_multibyte-10.phpt
ext/mbstring/tests/zend_multibyte-11.phpt
ext/mbstring/tests/zend_multibyte-12.phpt
ext/mysql/php_mysql.c
ext/mysqli/mysqli.c
ext/mysqlnd/mysqlnd_reverse_api.c
ext/mysqlnd/php_mysqlnd.c
ext/opcache/ZendAccelerator.c
ext/opcache/zend_accelerator_util_funcs.c
ext/opcache/zend_persist.c
ext/opcache/zend_persist_calc.c
ext/pcre/php_pcre.c
ext/pdo/pdo_dbh.c
ext/pdo/pdo_stmt.c
ext/pdo_pgsql/pgsql_driver.c
ext/pgsql/pgsql.c
ext/reflection/php_reflection.c
ext/session/session.c
ext/spl/spl_array.c
ext/spl/spl_observer.c
ext/standard/array.c
ext/standard/basic_functions.c
ext/standard/html.c
ext/standard/mail.c
ext/standard/php_array.h
ext/standard/proc_open.c
ext/standard/streamsfuncs.c
ext/standard/user_filters.c
ext/standard/var_unserializer.c
ext/standard/var_unserializer.re
main/php_variables.c
sapi/phpdbg/phpdbg.c
sapi/phpdbg/phpdbg_bp.c
sapi/phpdbg/phpdbg_frame.c
sapi/phpdbg/phpdbg_help.c
sapi/phpdbg/phpdbg_list.c
sapi/phpdbg/phpdbg_print.c
sapi/phpdbg/phpdbg_prompt.c

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Fixed support for unspecialized and GOTO and SWITCH executor

Tergets of ASSIGN and ASSIGN_REF don't have to be initialized

Use ZVAL_DEREF() macro

Fixed destruction of VM handler operands (FREE_OP1 and family)

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
typo spotted by Lajos Veres

typo spotted by Lajos Veres

Use better data structures (incomplete; able to run bench.php)

Use better data structures (incomplete) - refactored return_value handling

Use better data structures (incomplete)

Fixed warning "No new line at end of file"

Merge branch 'PHP-5.6'

Bump year

Bump year

Bump year

Fixed warning "No new line at end of file"

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
stop warnings from unused opcode map
- BFN
- Fixed bug #66311 (Stack smashing protection kills PDO/ODBC queries) patch by: mi

Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
stop warnings from unused opcode map
- BFN
- Fixed bug #66311 (Stack smashing protection kills PDO/ODBC queries) patch by: michael at orlitzky dot com
Included new .c file in build too
Fixed little typo in zend_vm_gen.php
Moved to new file, killing a lot of warnings

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Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
stop warnings from unused opcode map
- BFN

stop warnings from unused opcode map