Handle NULL caller_call_opline

This can happen if there is an EXIT in the call arguments, in which
case the DO_CALL opcode may be eliminated as unreachable.

Check for USER_FUNCTION

Remove copyright years.

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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Fixed issues related to optimization and persitence of classes linked with interfaces, traits or internal classes.

Future-proof email addresses

Future-proof email addresses...

Remove old SVN keywords substitutions

When the PHP source code was versioned in Subversion, there was
possible to substitute certain keywords such as $Id$ with revision
number, last

Remove old SVN keywords substitutions

When the PHP source code was versioned in Subversion, there was
possible to substitute certain keywords such as $Id$ with revision
number, last change time and author name. Such approach is not used
in Git so this patch removes these outdated artifacts from source
code files.

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Fixed bug #76477 (Opcache causes empty return value)

Avoid repeatable ARG_SHOULD_BE_SENT_BY_REF() checks in FETCH_*FUNC_ARG and following SEND_VAR_EX. Perform the check once in a new CHECK_FUNC_ARG opcode and reuse in the following FETCH_*FUNC_ARG and

Avoid repeatable ARG_SHOULD_BE_SENT_BY_REF() checks in FETCH_*FUNC_ARG and following SEND_VAR_EX. Perform the check once in a new CHECK_FUNC_ARG opcode and reuse in the following FETCH_*FUNC_ARG and SEND_FUNC_ARG (SEND_VAR_EX replacement).

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year++

year++

year++

Use call_map to avoid linear call lookup

Update copyright headers to 2017

Update copyright headers to 2017

Export zend_analyze_calls() to allow building call trees.

Fix call graph construction

Travis build for 7.1+ has been failing for the past week...

Use simple "one-pass" algorithm.

Split ZEND_SEND_VAR_NO_REF into ZEND_SEND_VAR_NO_REF and ZEND_SEND_VAR_NO_REF_EX (similar to ZEND_SEND_VAL) and remove ZEND_ARG_* flags.

Fixed possible crash

Support known static/method calls in call graph

For this purpose extract the function lookup call into a helper
zend_optimizer_get_called_func().

Fix memory leak

Leak was introduced in c88ffa9a5673cb3141660626ba1921671f0b84d6.

arena_alloc never returns NULL

Fix bitset initialization