Guard for null result from ClangModuleUnit::getClangModule(). #17984
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The documentation for this method states that this can return null if the module unit represents [the] imported headers. We have a crash report on dereferencing the result of this function farther down, and I suspect it's hitting exactly that case. Unfortunately we only have a back trace and no test case. Fixes: rdar://problem/41888568
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jrose-apple
approved these changes
Jul 16, 2018
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The documentation for this method states that this can return null if
the module unit represents [the] imported headers.
We have a crash report on dereferencing the result of this function
farther down, and I suspect it's hitting exactly that
case. Unfortunately we only have a back trace and no test case.
Fixes: rdar://problem/41888568