Change the way "provisional" works for Darwin availability. #28105
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Instead of treating it as "not supported" and not generating code at all, generate the code but wrap some of it in MTR_ENABLE_PROVISIONAL and mark the rest with MTR_PROVISIONALLY_AVAILABLE. The definition of MTR_PROVISIONALLY_AVAILABLE in turn depends on whether MTR_ENABLE_PROVISIONAL is defined. If it's not, those things are marked as NS_UNAVAILABLE and hidden linker visibility, to avoid people depending on them. This allows compiling the framework with support for the provisional things, while making the default not support them. darwin-framework-tool is changed to set MTR_ENABLE_PROVISIONAL when YAML tests are enabled, so we can stop excluding tests from there.
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…chip#28105) Instead of treating it as "not supported" and not generating code at all, generate the code but wrap some of it in MTR_ENABLE_PROVISIONAL and mark the rest with MTR_PROVISIONALLY_AVAILABLE. The definition of MTR_PROVISIONALLY_AVAILABLE in turn depends on whether MTR_ENABLE_PROVISIONAL is defined. If it's not, those things are marked as NS_UNAVAILABLE and hidden linker visibility, to avoid people depending on them. This allows compiling the framework with support for the provisional things, while making the default not support them. darwin-framework-tool is changed to set MTR_ENABLE_PROVISIONAL when YAML tests are enabled, so we can stop excluding tests from there.
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Instead of treating it as "not supported" and not generating code at all, generate the code but wrap some of it in MTR_ENABLE_PROVISIONAL and mark the rest with MTR_PROVISIONALLY_AVAILABLE.
The definition of MTR_PROVISIONALLY_AVAILABLE in turn depends on whether MTR_ENABLE_PROVISIONAL is defined. If it's not, those things are marked as NS_UNAVAILABLE and hidden linker visibility, to avoid people depending on them.
This allows compiling the framework with support for the provisional things, while making the default not support them.
darwin-framework-tool is changed to set MTR_ENABLE_PROVISIONAL when YAML tests are enabled, so we can stop excluding tests from there.