clar: Move cl_assert_equal_sz() definition to clar.h

tests-clar/clar.h

@@ -68,6 +68,7 @@ void cl_fixture_cleanup(const char *fixture_name);
 
 #define cl_assert_equal_p(p1,p2) clar__assert_equal(__FILE__,__LINE__,"Pointer mismatch: " #p1 " != " #p2, 1, "%p", (p1), (p2))
 
+#define cl_assert_equal_sz(sz1,sz2) clar__assert_equal(__FILE__,__LINE__,#sz1 " != " #sz2, 1, "%"PRIuZ, (size_t)(sz1), (size_t)(sz2))
 
 void clar__fail(
 	const char *file,

tests-clar/clar_libgit2.h

@@ -32,8 +32,6 @@ void cl_git_report_failure(int, const char *, int, const char *);
 #define cl_assert_at_line(expr,file,line) \
 	clar__assert((expr) != 0, file, line, "Expression is not true: " #expr, NULL, 1)
 
-#define cl_assert_equal_sz(sz1,sz2) clar__assert_equal(__FILE__,__LINE__,#sz1 " != " #sz2, 1, PRIuZ, (size_t)(sz1), (size_t)(sz2))
-
 GIT_INLINE(void) clar__assert_in_range(
 	int lo, int val, int hi,
 	const char *file, int line, const char *err, int should_abort)