enable_language: combine try_compile for working compiler and ABI detection

Cc: @craig.scott @marc.chevrier

CMakeTest*Compiler.cmake and CMakeDetermineCompilerABI.cmake each do a try_compile to test and then introspect the compiler. #18700 (closed) demonstrates how much each initialization check can affect small projects (and CMake's test suite). I suspect it is possible to combine the roles of CMakeTest*Compiler.cmake and CMakeDetermineCompilerABI.cmake into a single try_compile call.

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