Better hot/cold code splitting

Forbid use of not fully linked classes

Revert "Rename *.l files to *.re"

This reverts commit 969047749d33bb88a0573aa91a57e2070335111a.

Rename *.l files to *.re

This syncs PHP lexer files to all use *.re extension. The *.re files are
processed with the RE2C tool.

Removed ability to compile PHP without EX(run_time_cache). ZEND_EX_USE_RUN_TIME_CACHE was always defined.

Deprecate left-associative ternary

Deprecate nesting ternary operators without explicit parentheses.

RFC: https://wiki.php.net/rfc/ternary_associativity

Implement arrow functions

Per RFC: https://wiki.php.net/rfc/arrow_functions_v2

Co-authored-by: Levi Morrison <levim@php.net>
Co-authored-by: Bob Weinand <bobwei9@hotmail.com>

Also, use ZEND_ACC_PRELOADED for classes

Fix flag value clash affecting defined() function

Backported call frame initialization improvement

Replace "ZEND_CALL_CTOR" hack by additional live-range

Removed old constants (they are redeclared as macros)

Simplify call frame initialization

Deprecate unparenthesized concatenation and addition/subtraction

Implementing RFC https://wiki.php.net/rfc/concatenation_precedence

Revert "Switch to bison location tracking"

This reverts commit e528762c1c59bc0bd0bd6d78246c14269630cf0f.

Dmitry reports that this has a non-trivial impact on parsing
overhead, e

Revert "Switch to bison location tracking"

This reverts commit e528762c1c59bc0bd0bd6d78246c14269630cf0f.

Dmitry reports that this has a non-trivial impact on parsing
overhead, especially on 32-bit systems. As we don't have a strong
need for this change right now, I'm reverting it.

See also comments on
https://github.com/php/php-src/commit/e528762c1c59bc0bd0bd6d78246c14269630cf0f.

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Fix typos in the documentation

Switch to bison location tracking

Locations for AST nodes are now tracked with the help of bison
location tracking. This is more accurate than what we currently do
and easier to exte

Switch to bison location tracking

Locations for AST nodes are now tracked with the help of bison
location tracking. This is more accurate than what we currently do
and easier to extend with more information.

A zend_ast_loc structure is introduced, which is used for the location
stack. Currently it only holds the start lineno, but can be extended
to also hold end lineno and offset/column information in the future.

All AST constructors now accept a zend_ast_loc* as first argument, and
will use it to determine their lineno. Previously this used either the
CG(zend_lineno), or the smallest AST lineno of child nodes.

On the parser side, the location structure for a whole rule can be
obtained using the &@$ character salad.

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Fix shifting signed values too far

Signed shift of 31 for int and 63 for long is flagged as undefined
behavior by UBSan (-fsanitize=undefined) and seems to be indeed so
according to

Fix shifting signed values too far

Signed shift of 31 for int and 63 for long is flagged as undefined
behavior by UBSan (-fsanitize=undefined) and seems to be indeed so
according to the standard.

The patch converts such cases to use unsigned.

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Fix shifting signed values too far

Signed shift of 31 for int and 63 for long is flagged as undefined
behavior by UBSan (-fsanitize=undefined) and seems to be indeed so
according to

Fix shifting signed values too far

Signed shift of 31 for int and 63 for long is flagged as undefined
behavior by UBSan (-fsanitize=undefined) and seems to be indeed so
according to the standard.

The patch converts such cases to use unsigned.

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Fix out-dated docs and typo

[ci skip]

ZEND_COMPILE_EXTENDED_INFO split Currently a tool may not decide between debugging and profiling behaviour: We split ZEND_COMPILE_EXTENDED_INFO into ZEND_COMPILE_EXTENDED_FCALL and ZEND_COMPILE_EXTEN

ZEND_COMPILE_EXTENDED_INFO split Currently a tool may not decide between debugging and profiling behaviour: We split ZEND_COMPILE_EXTENDED_INFO into ZEND_COMPILE_EXTENDED_FCALL and ZEND_COMPILE_EXTENDED_STMT We define ZEND_COMPILE_EXTENDED_INFO as ZEND_COMPILE_EXTENDED_STMT|ZEND_COMPILE_EXTENDED_FCALL

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Fixed bug #77633

Add a new class flag to inherit get_iterator() when implementing
the Iterator/IteratorAggregate interfaces and use it for
ArrayIterator.

Add preloading support for typed properties

During preloading, try to resolve all property types to CEs. Add a
flag that tracks this. If not all property types can be resolved,
then

Add preloading support for typed properties

During preloading, try to resolve all property types to CEs. Add a
flag that tracks this. If not all property types can be resolved,
then the class is not eligible for preloading.

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Fixed bug #77613 (method visibility change) (reverted ZEND_ACC_CTOR and ZEND_ACC_DTOR flags removal)

Simplify checks