Also unreserve T_CLASS

Rebase Joe's anon classes implementation

Drop ??? for AST_ZNODE in ast pretty printer

Add "yield from" support to ast pretty printer

Convert fatal errors into EngineExceptions
Make zval_update_constant_ex(), zval_update_constant(), zend_update_class_constants() and zend_ast_evaluate() return SUCCESS or FAILURE.

Use zend_error_noreturn() for fatal errors

Unused var

Implemented AST pretty-printer

Implement return types

RFC is documented here: https://wiki.php.net/rfc/return_types

Provide compiler hook for altering the AST pre-compilation.

bump year

bump year

Micro optimaztion (yeah, I know compiler supposed to do that)

first shot remove TSRMLS_* things

bring back all the TSRMLS_FETCH() stuff

for better comparability with the mainstream

cleanup TSRMLS_FETCH

fix unsigned negation

Use zval_ptr_dtor_nogc to destroy literals

Also move the definition of zval_ptr_dtor_nogc to zend_variables.h
(from zend_execute.h/.c) as it's used in a few places.

fix C89 compat

Don't distinguish between ast/list in parser

This removes the need to use $<ast>{n} or $<list>$ casts in the
reduction actions.

Keeping the distinction in the parser doesn't rea

Don't distinguish between ast/list in parser

This removes the need to use $<ast>{n} or $<list>$ casts in the
reduction actions.

Keeping the distinction in the parser doesn't really give us any
benefit and only makes changing the grammar harder.

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master renames phase 1

Fix ast size computation in case of zero children

Fix GC when opcache is in use

Fix merge

first shot on merging the core fro the int64 branch