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// RUN: not %target-swift-frontend -F %S/Inputs/defer-supermodule-import -enable-objc-interop -import-objc-header %S/Inputs/defer-supermodule-import/Some-Bridging-Header.h -typecheck %s 2>&1 | %FileCheck -check-prefix=HEADER-ERROR %s
// HEADER-ERROR: Some-Bridging-Header.h:4:13: error: expected a type
// HEADER-ERROR: Some-Bridging-Header.h:7:10: error: declaration of 'TYPE' must be imported from module 'Some' before it is required
// The bug we're testing here is that:
//
// - Given a supermodule defining some types
// - Given a submodule of that supermodule
// - Given an _erroneous_ bridging header that imports the _submodule_ and tries
// to use the _supermodule's_ types
//
// That we emit an error. Previously we did not: Swift's "implicit supermodule
// import" rule would fire _eagerly_, so by the time the submodule import was
// complete the supermodule was also imported and the bridging header would pass
// through without flagging the error. This made it possible to write textual
// bridging headers that would not, themselves, be considered valid objc code as
// far as clang (or more importantly: clang's PCH-generating pass) was
// concerned.
print(bar(foo()))
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