Release 1.0.16: Optimize ast\Node property setting. Document `#[Allow…

…sDynamicProperties]` in stubs (nikic#219)

Add `#[AllowsDynamicProperties]` to AST stubs

Use OBJ_PROP_NUM for ast\Node and ast\Metadata building

(Do it even for Metadata.
The resulting assembly code should be smaller and it's an example of
how to write other classes efficiently in the future)

Mark 1.0.15 and 1.0.16 as stable

Update php versions tested in CI, prepare the 1.0.15 release (nikic#218)

* Update php versions tested in CI

PHP '8.1' isn't published yet on docker hub.

Start testing with php 8.1 in appveyor

* Prepare for a 1.0.15 release

Make it possible to test with php 8.2 without deprecation notes for
endLineno, etc. See nikic#217

Also, document how to properly update cache slot numbers if new
properties are added to ast\Node in the future.

Support php 8.1 read-only properties, first-class callable syntax (ni…

…kic#209)

Add php 8.1 readonly property support, first-class callables

And run all tests even after the first case fails

Mark ast version 90 as current and 85 as no longer experimental.

Add date to changelog, bump version in php_ast.h

Release php-ast 1.0.13 (nikic#210)

Release php-ast 1.0.12 (nikic#205)

Release ast version 1.0.11 (nikic#203)

Release php-ast 1.0.10 (nikic#183)

* Release php-ast 1.0.10

* Fill in date in README for ast version 80

Release php-ast 1.0.9 (nikic#175)

The API will change in php 8.0.0beta3.
Attributes syntax will change in php 8.0.0RC1.

Release php-ast 1.0.8 (nikic#171)

Release php-ast version 1.0.7 (nikic#163)

Add missing test files.

Update the changelog entry.

This will let projects using php-ast start using php 8.0's
attributes/match expressions.