Douglas Gregor a686e1b05d Introduce module attributes into the module map grammar, along with a
single attribute ("system") that allows us to mark a module as being a
"system" module. Each of the headers that makes up a system module is
considered to be a system header, so that we (for example) suppress
warnings there.

If a module is being inferred for a framework, and that framework
directory is within a system frameworks directory, infer it as a
system framework.

llvm-svn: 149143
2012-01-27 19:52:33 +00:00

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framework module NoUmbrella [system] {
umbrella "Headers"
module * { }
module unavailable {
requires unavailable
header "Boom.h"
}
}