* Bump target frameworks from netcoreapp1.0 to netcoreapp2.2.
Move global.json up to root of repo, change SDK ver to 2.2.100
Change .net core sdk in dockerfile for kokoro to ver 2.2.100
* Re-add curl install
* Change all exe target to 2.1
* Fix incorrect versions in global.json and Dockerfile
* Downgrade version to 2.1 to match exe targets
* introduce separate testing Dockerfile for C#
* revert changes to the shared Dockerfile
* use netcoreapp2.1 for C# conformance tests
* use language specific dockerfile for testing C#
* Edit compatibility tests script to use parameters instead of file copies
* install dotnet SDK on windows before running the tests
* update csharp_EXTRA_DIST
* Add ruby 2.6 gem build for linux
* Add docker hub organization
* Add ruby2.6 in cross compile targets
* Fix tests
* Check mac version
* No need to install php in preparation for mac
* Add ruby 2.6 test
* Fix broken tests
* Fix compatibility test
* Fix bundler version
* Use new docker image
* Fix broken test
* Use new docker image in ruby26 test
* Install ruby for mac
* Rebuild python docker image
* Update docker image
* Change call to build_and_run_docker.sh
* Set up python tests for different versions
* Fix comments
* Inherit from message instead of implement
When regestering class (implmenets other class) during MINIT, zend_class_implements
would call zend_class_entry->interface_gets_implemented(). In PHP-7.3 interface_gets_implemented shares the same location with create_object.
However, during MINIT, the global object storeage hasn't been initialized. And thus, caused segment fault in php 7.3.
* Use zend_string_init where interned string may be the value.
zend_string_dup will keep using the existing interned string.
In php 7.3, interned string cannot be destroyed from user's code.
* Uncommment debug code
* Use latest phpunit for each php versions
* Revert change in Dockerfile
* Update php test to use the new docker image
* Update composer
* Change docker organization
* Update phpunit
* Debug phpunit
* Store phpunit into bin dir in docker image
* Install valgrind to docker
* Fix compatibility test
* Remove generated_service_test from compatibility c extension test
* Update 32bit php test to the new docker image
* Install bison
* Fix build.sh
* Fix DOCKERIMAGE_PREFIX
* Fix basename
* Add comment to build_and_run_docker2.sh
* Remove commented code
* Fix comments
Tomo Suzuki
Paul Yang
Hao Nguyen
Sydney Acksman