Reduce makefile dependencies by 10%

The includes in libc/calls/calls.h have now been refactored so that
functions with struct parameters are declared in libc/calls/struct/

test/libc/str/blake2_test.c

@@ -17,6 +17,7 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/assert.h"
+#include "libc/mem/mem.h"
 #include "libc/rand/rand.h"
 #include "libc/str/blake2.h"
 #include "libc/str/str.h"

test/libc/str/longsort_test.c

@@ -17,6 +17,7 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/alg/alg.h"
+#include "libc/mem/mem.h"
 #include "libc/rand/rand.h"
 #include "libc/runtime/runtime.h"
 #include "libc/str/str.h"

test/libc/str/regex_test.c

@@ -16,6 +16,8 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/mem/mem.h"
+#include "libc/runtime/gc.internal.h"
 #include "libc/str/str.h"
 #include "libc/testlib/ezbench.h"
 #include "libc/testlib/testlib.h"

test/libc/str/sigset_test.c

@@ -19,7 +19,7 @@
 #include "libc/bits/bits.h"
 #include "libc/bits/safemacros.internal.h"
 #include "libc/calls/calls.h"
-#include "libc/calls/sigbits.h"
+#include "libc/calls/struct/sigset.h"
 #include "libc/str/str.h"
 #include "libc/testlib/testlib.h"
 

test/libc/str/strsignal_test.c

@@ -17,6 +17,7 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/str/str.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/testlib/testlib.h"
 
 TEST(strsignal, test) {

test/libc/str/undeflate_test.c

@@ -34,6 +34,7 @@
 #include "libc/sysv/consts/map.h"
 #include "libc/sysv/consts/o.h"
 #include "libc/sysv/consts/prot.h"
+#include "libc/sysv/consts/s.h"
 #include "libc/testlib/ezbench.h"
 #include "libc/testlib/hyperion.h"
 #include "libc/testlib/testlib.h"