test/Modules/Inputs/codegen-flags/foo.h - llvm-project/clang - Git at Google

 #ifndef FOO_H
 #define FOO_H
 struct foo {
 };
 inline void f1() {
 }
 #endif
	#ifndef FOO_H
	#define FOO_H
	struct foo {
	};
	inline void f1() {
	}
	#endif