v1.10.20

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Improvements

• PHPStan Pro: Change Cloudflare DNS for to family version (#​2467), thanks @​spaze!
• Add non-zero-int type (#​2449), thanks @​PrinsFrank!
• Implement gettype() return type extension (#​2437), thanks @​staabm!

Bugfixes

• Allow to remember constant and impure expressions in match condition (https://github.com/phpstan/phpstan-src/commit/0cdda0b210a623ee299323da80771c2c84c602f9), #​4451, #​6064, #​9457
• Fix gettype in match condition (https://github.com/phpstan/phpstan-src/commit/e4ef00c0573daea5e83199d182e35ea988a7d95b, https://github.com/phpstan/phpstan-src/commit/caa0a5b5247b2ff58c56b543aa3cb286b00ffde7), #​8614
• Fix get_class in match condition (https://github.com/phpstan/phpstan-src/commit/106526db8bd64880af81faa61d9f970e793e3c38), #​1885, #​8536, #​8092
• Understand get_class compared with static::class (https://github.com/phpstan/phpstan-src/commit/590eb03e0ce2b5b02562ee9bb0af803fcbb1dc95), #​1885
• Understand gettype when there's a union of strings on the other side (https://github.com/phpstan/phpstan-src/commit/36e412ffed0ab6f4220c58276b06041a7a487db3), #​6294, #​2580
• Treat ConstantArrayType as covariant in its keys and values (#​2464), #​9161, thanks @​jiripudil!
• Treat ArrayType as covariant in its keys and values (#​2465), thanks @​jiripudil!
• Make NonEmptyArrayType::toArray() return $this (#​2349), #​9208, thanks @​zonuexe!
• Retain list type via array_push() and array_unshift() (#​2451), #​8449, thanks @​herndlm!
• For @var above throw and return, change the type of expr only for the stmt callback (https://github.com/phpstan/phpstan-src/commit/b55109537dd62ac0e352b0a55df62cfc83f12f08), #​9459

Internals

• Remove redundant conditions from RemoveUnusedCodeByPhpVersionIdVisitor. (#​2459), thanks @​mad-briller!
• Return early in CachingVistor to avoid always-false instanceof checks. (#​2460), thanks @​mad-briller!
• Introduce CombinationsHelper (https://github.com/phpstan/phpstan-src/commit/175307e12de100632a05f6a122e0873a3c1fc6a1)
• Type::getFiniteTypes() (https://github.com/phpstan/phpstan-src/commit/7912caf4b66bdff65d3d6795d4c584c17ece5e51, https://github.com/phpstan/phpstan-src/commit/fa9a951f808466be36792ba65f128f9838ab617e, https://github.com/phpstan/phpstan-src/commit/b5cf52b916ad4d155f1809356c96cbe924f51dbe)