[libc++] Explicitly list Lit features from the config_site header
When grepping for unused features in the test suite, we will now find those features and where they are defined, as opposed to thinking they are dead features.
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@ -56,22 +56,22 @@ features = [
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# is defined after including <__config_site>, add a Lit feature called
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# `libcpp-xxx-yyy-zzz`. When a macro is defined to a specific value
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# (e.g. `_LIBCPP_ABI_VERSION=2`), the feature is `libcpp-xxx-yyy-zzz=<value>`.
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macros = [
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'_LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE',
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'_LIBCPP_HAS_NO_MONOTONIC_CLOCK',
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'_LIBCPP_HAS_NO_STDIN',
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'_LIBCPP_HAS_NO_STDOUT',
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'_LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS',
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'_LIBCPP_HAS_NO_THREADS',
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'_LIBCPP_HAS_THREAD_API_EXTERNAL',
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'_LIBCPP_HAS_THREAD_API_PTHREAD',
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'_LIBCPP_NO_VCRUNTIME',
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'_LIBCPP_ABI_VERSION',
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'_LIBCPP_ABI_UNSTABLE'
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]
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for macro in macros:
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macros = {
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'_LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE': 'libcpp-has-no-global-filesystem-namespace',
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'_LIBCPP_HAS_NO_MONOTONIC_CLOCK': 'libcpp-has-no-monotonic-clock',
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'_LIBCPP_HAS_NO_STDIN': 'libcpp-has-no-stdin',
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'_LIBCPP_HAS_NO_STDOUT': 'libcpp-has-no-stdout',
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'_LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS': 'libcpp-has-no-thread-unsafe-c-functions',
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'_LIBCPP_HAS_NO_THREADS': 'libcpp-has-no-threads',
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'_LIBCPP_HAS_THREAD_API_EXTERNAL': 'libcpp-has-thread-api-external',
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'_LIBCPP_HAS_THREAD_API_PTHREAD': 'libcpp-has-thread-api-pthread',
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'_LIBCPP_NO_VCRUNTIME': 'libcpp-no-vcruntime',
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'_LIBCPP_ABI_VERSION': 'libcpp-abi-version',
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'_LIBCPP_ABI_UNSTABLE': 'libcpp-abi-unstable'
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}
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for macro, feature in macros.items():
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features += [
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Feature(name=lambda cfg, macro=macro: macro.lower()[1:].replace('_', '-') + (
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Feature(name=lambda cfg, feature=feature: feature + (
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'={}'.format(compilerMacros(cfg)[macro]) if compilerMacros(cfg)[macro] else ''
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),
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when=lambda cfg, macro=macro: macro in compilerMacros(cfg),
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