Compiler compiler_defines_for_extensions extension list

https://github.com/KhronosGroup/OpenCL-CTS/blob/b79a8a2f42c1c71db3053dedadea43e0ac4fd118/test_conformance/compiler/test_compiler_defines_for_extensions.cpp#L26

The Compiler compiler_defines_for_extensions test having a static list of extension names that needs to be manually updated every time a new extension is released is cumbersome, and causes test failures when the list isn't kept up-to-date.

Can this test be written in a way so that we don't need to maintain an extension list?

Start with test_conformance/compiler/test_compiler_defines_for_extensions.cpp at the linked test and inspect how its static extension-name list is used. Determine how the test can avoid manually maintaining that list while preserving its validation purpose. Done means the test no longer requires updates whenever a new extension is released and still detects incorrect compiler-defined extensions.

Written by the indexing model from the issue text.