Introduce extra counter to avoid RTD key collisions

Also generate a fatal error if a collision occurs in zend_compile.

This is not perfect, because collisions might still be introdu

Introduce extra counter to avoid RTD key collisions

Also generate a fatal error if a collision occurs in zend_compile.

This is not perfect, because collisions might still be introduced
via opcache, if one file is included multiple times during a request,
invalidate in the meantime and recompiled by different processes.

This still needs to be addressed, but this patch fixes the much
more common case of collisions occuring when opcache is not used.

Fixes bug #78903.

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Implement union types

According to RFC: https://wiki.php.net/rfc/union_types_v2

The type representation now makes use of both the pointer payload
and the type mask at the same t

Implement union types

According to RFC: https://wiki.php.net/rfc/union_types_v2

The type representation now makes use of both the pointer payload
and the type mask at the same time. Additionall, zend_type_list is
introduced as a new kind of pointer payload, which is used to store
multiple class types. Each of the class types is a tagged pointer,
which may be either a class name or class entry. The latter is only
used for typed properties, while arguments/returns will instead use
cache slots. A type list can contain a mix of both names and CEs at
the same time, as not all classes may be resolvable.

One thing this is missing is support for union types in arginfo
and stubs, which I want to handle separately.

I've also dropped the special object code from the JIT implementation
for now -- I plan to add this back in a different form at a later time.
For now I did not want to include non-trivial JIT changes together
with large functional changes.

Another possible piece of follow-up work is to implement "iterable"
as an internal alias for "array|Traversable". I believe this will
eliminate quite a few special-cases that had to be implemented.

Closes GH-4838.

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Make zend_type a 2-field struct

We now store the pointer payload and the type mask separately. This
is in preparation for union types, where we will be using both at
the same time.

Make zend_type a 2-field struct

We now store the pointer payload and the type mask separately. This
is in preparation for union types, where we will be using both at
the same time.

To avoid increasing the size of arginfo structures, the
pass_by_reference and is_variadic fields are now stored as part of
the type_mask (8-bit are reserved for custom use).

Different types of pointer payloads are distinguished based on bits
in the type_mask.

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Use clean shutdown on uncaught exception

add ValueError

ValueError is intended to be thrown when a function or method receives
an argument that has the right type (incorrect type should throw a
TypeError) but an inappropria

add ValueError

ValueError is intended to be thrown when a function or method receives
an argument that has the right type (incorrect type should throw a
TypeError) but an inappropriate value.

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Make error_reporting=E_ALL the default

Merge branch 'PHP-7.4'

Set PROPERTY_TYPES_RESOLVED flag for internal classes

Also make sure that the resolution happens before preloading runs.

Merge branch 'PHP-7.4'

* PHP-7.4:
simple ignore arguments in exceptions implementation

simple ignore arguments in exceptions implementation

Constify some char* arguments or return values of ZEND_API

Closes GH-4247.

Merge branch 'PHP-7.4'

* PHP-7.4:
Better hot/cold code splitting

Better hot/cold code splitting

Merge branch 'PHP-7.4'

Mark zend_bailout() as a noreturn function

Merge branch 'PHP-7.4'

Fix lineno for more inheritance errors

And also include explicit linenos in tests.

Merge branch 'PHP-7.4'

Add zend_error_at API that accepts a filename and lineno

Use this for the opcache preloading warnings, as an example usage.

Merge branch 'PHP-7.4'

* PHP-7.4:
Implemented a faster way to access predefined TSRM resources - CG(), EG(), etc.

Implemented a faster way to access predefined TSRM resources - CG(), EG(), etc.

Merge branch 'PHP-7.4'

* PHP-7.4:
Avoid reinitailization of ZTS cache pointer. Initialize it once in TSRM.c

Avoid reinitailization of ZTS cache pointer. Initialize it once in TSRM.c

Make zpp failures always throw, independent of strict_types

Previously zend_parse_parameters (and FastZPP) would handle invalid
arguments depending on strict_types: With strict_types=1,

Make zpp failures always throw, independent of strict_types

Previously zend_parse_parameters (and FastZPP) would handle invalid
arguments depending on strict_types: With strict_types=1, a TypeError
is thrown, with strict_types=0 a warning is thrown and (usually) NULL
is returned. Additionally, some functions (constructors always and
other methods sometimes) opt-it to throwing regardless of strict_types.

This commit changes zpp to always generate a TypeError exception in
PHP 8.

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Merge branch 'PHP-7.4'

* PHP-7.4:
drop unused parameter from zend_startup