|  | // RUN: rm -rf %t
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							|  | // RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I%S/Inputs/merge-name-for-linkage -verify %s
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							|  | // expected-no-diagnostics
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							|  | typedef union {} pthread_mutex_t;
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							|  | #include "a.h"
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							|  | pthread_mutex_t x;
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							|  | #include "b.h"
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							|  | pthread_mutex_t y;
 |