Rename '183 as-needed' common test into '184 as-needed'

Also use !bool instead of bool == false.

test cases/common/183 as-needed/main.cpp

@@ -1,7 +0,0 @@
-#include <cstdlib>
-
-#include "libA.h"
-
-int main() {
-  return (meson_test_as_needed::linked == false ? EXIT_SUCCESS : EXIT_FAILURE);
-}

test cases/common/184 as-needed/main.cpp

@@ -0,0 +1,7 @@
+#include <cstdlib>
+
+#include "libA.h"
+
+int main() {
+  return !meson_test_as_needed::linked ? EXIT_SUCCESS : EXIT_FAILURE;
+}