Import thread_local / _Thread_local marked APIs as nonisolated(unsafe) #75820
Description
Description
Unlike regular global variables, global variables in TLS can be accessed from any actor context without data-race in theory. For example, wasi-libc's errno is defined as a global TLS variable (not a macro unlike other libcs)
ClangImporer should import those global variables with nonisolated(unsafe) attributes to avoid redundant shims
Additional information
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