Fix coverage for new files

tests/Makefile

@@ -194,7 +194,6 @@ SYNTHESIS_DATA=	M-ALGO test-malgo.c.c test-malgo.synt			\
 		M-I-SHARED test-mishared.c.c test-mishared.synt			\
 		M-LIST test-mlist.c.c test-mlist.synt					\
 		M-MEMPOOL test-mmempool.c.c test-mmempool.synt			\
-		M-MUTEX ../m-mutex.h test-mmutex.synt					\
 		M-PRIOQUEUE test-mprioqueue.c.c test-mprioqueue.synt	\
 		M-RBTREE test-mrbtree.c.c test-mrbtree.synt				\
 		M-SERIAL-BIN ../m-serial-bin.h test-mserial-bin.synt	\
@@ -203,6 +202,8 @@ SYNTHESIS_DATA=	M-ALGO test-malgo.c.c test-malgo.synt			\
 		M-SNAPSHOT test-msnapshot.c.c test-msnapshot.synt		\
 		M-STRING ../m-string.h test-mstring.synt 				\
 		M-TREE test-mtree.c.c test-mtree.synt 				    \
+		M-THREAD ../m-thread.h test-mmutex.synt					\
+		M-TRY ../m-try.h test-mtry.synt					\
 		M-TUPLE test-mtuple.c.c test-mtuple.synt 				\
 		M-VARIANT test-mvariant.c.c test-mvariant.synt 			\
 		M-WORKER ../m-worker.h test-mworker.synt