Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly

Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly used by Vim and Emacs editors
yet with recent changes the once working definitions don't work
anymore in Vim without custom plugins or additional configuration.
Neither are these settings synced across the PHP code base.

A simpler and better approach is EditorConfig and fixing code
using some code style fixing tools in the future instead.

This patch also removes the so called modelines for Vim. Modelines
allow Vim editor specifically to set some editor configuration such as
syntax highlighting, indentation style and tab width to be set in the
first line or the last 5 lines per file basis. Since the php test
files have syntax highlighting already set in most editors properly and
EditorConfig takes care of the indentation settings, this patch removes
these as well for the Vim 6.0 and newer versions.

With the removal of local variables for certain editors such as
Emacs and Vim, the footer is also probably not needed anymore when
creating extensions using ext_skel.php script.

Additionally, Vim modelines for setting php syntax and some editor
settings has been removed from some *.phpt files. All these are
mostly not relevant for phpt files neither work properly in the
middle of the file.

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Adios, yearly copyright ranges

Adios, yearly copyright ranges

Future-proof email addresses

Update email addresses. We're still @Zend, but future proofing it...

Remove __GNUC__ guard around stddef.h include

HAVE_STDDEF_H guards have been removed by
6c1ff61a368a26c8f2cbf383aa8a26fc30cf59ef, because the header is
always available in C89. This

Remove __GNUC__ guard around stddef.h include

HAVE_STDDEF_H guards have been removed by
6c1ff61a368a26c8f2cbf383aa8a26fc30cf59ef, because the header is
always available in C89. This removes a __GNUC__ guard for the
same header.

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Fix #76767: ‘asm’ operand has impossible constraints in zend_operators.h

We disable assembly code with gcc 4.8 on i386.

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

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API cleanup.
Removed useless filename and lineno arguments, used in DEBUG build.
The patch doesn't break source compatibility of public API (only binary compatibility).

Conversion related optimizations

Use zend_string_release_ex() instread of zend_string_release() in places, where we sure about string persistence.

Use add/sub instead of inc/dec

Use const pointers where appropriate

Added zendi_smart_streq() for smart string equality check

year++

year++

year++

Use zend_string_equal*() API for zend_string equality check instead of direct memcmp() usage.

Use zend_string_tolower() where it's possible (to avoid reallocations).
Allow zend_string_tolower_ex() to create parsistent strings

Add configure check for asm goto support

asm goto is not supported by couple of systems. To make sure it does,
we can check it at configure-time.

Prefer "GNU asm goto" to __builtin_saddl_overflow() for overflow detection. This allows generation of significantly better code.

Optimized zend_is_true() for objects (in most cases, it doesn't need to call the conversion handler).

Fix condition

Avoid unnecessary reference-counting on strings.

Removed "_" from API functions.