Fix #77993: Wrong parse error for invalid hex literal on Windows

If a PHP file contains an invalid hex literal such as `0x_10`, the expected error
is `Parse error: syntax error, unexpect

Fix #77993: Wrong parse error for invalid hex literal on Windows

If a PHP file contains an invalid hex literal such as `0x_10`, the expected error
is `Parse error: syntax error, unexpected 'x_10' (T_STRING) in %s on line %d`.

This already worked correctly on Linux, but on Windows prior to this patch a different
error was produced: `Parse error: Invalid numeric literal in %s on line %d`.

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year++

year++

Fixed bug #74947 (Segfault in scanner on INF number)

Fix sequencing UB

Fix bug where `yield from` is captured too greedily

In the following piece of code:

```php
function from1234($x) {
return $x;
}
function foo($x) {
yield from

Fix bug where `yield from` is captured too greedily

In the following piece of code:

```php
function from1234($x) {
return $x;
}
function foo($x) {
yield from1234($x);
}
```

The statement inside foo is taken as `yield from` `1234($x)`
which is neither the intent, nor even legal syntax for an fcall.

Do a lookahead for breaking non-label characters after the
`yield from` and only accept it if they occur.

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Simplify increment_lineno handling

Update copyright headers to 2017

Update copyright headers to 2017

Update copyright headers to 2017

Implement #72918: negative offset inside a quoted string leads to parse error

We allow negative numeric offsets for the simple syntax inside
double-quoted and heredoc strings.

Merge branch 'PHP-7.0' into PHP-7.1

(cherry picked from commit 26964ccea0f52ed4d6beda3bcfd1508f6d3dad43)

Fix line number of implicit return in pseudo-main scope

Make sure TOKEN_PARSE mode is thread safe

Introduce an on_event_context passed to the on_event hook. Use this
context to pass along the token array. Previously this was stored
in a n

Make sure TOKEN_PARSE mode is thread safe

Introduce an on_event_context passed to the on_event hook. Use this
context to pass along the token array. Previously this was stored
in a non-tls global :/

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Fixed compilation warnings

Raise compiler warning on octal overflow

Addresses https://bugs.php.net/bug.php?id=71994

Eliminated checks for (func->op_array.fn_flags & ZEND_ACC_GENERATOR) in fast path of DO_FCALL* handlers.
This slightly improves calls to regular function and method calls in cost of a bit slower

Eliminated checks for (func->op_array.fn_flags & ZEND_ACC_GENERATOR) in fast path of DO_FCALL* handlers.
This slightly improves calls to regular function and method calls in cost of a bit slower generator initialization.
Separate call frame for generators, allocated on heap, now created by ZEND_GENERATOR_CREATE instruction.

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Revert "Refactor zval cleanup into single function"

This reverts commit bac6fdb0c52c924e726c5a78de8858bf27b6586b.

Refactor zval cleanup into single function

Also use zval_ptr_dtor_nogc() everywhere in Zend in favor of zval_dtor()

Fix bug #71897

Fixed bug #71724

bump year which is missed in rev 49493a2

bump year which is missed in rev 49493a2

Separate common part of compile_file() and compile_string() into zend_compile()

Don't return T_ERROR from token_get_all()

This turned out to be rather inconvenient after all. Instead just
return the same output we did on PHP 5. If people want to have an
error, u

Don't return T_ERROR from token_get_all()

This turned out to be rather inconvenient after all. Instead just
return the same output we did on PHP 5. If people want to have an
error, use TOKEN_PARSE.

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