add dependency so include/llvm-libc-types/__sighandler_t.h gets copied

Author: nickdesaulniers

libc/include/CMakeLists.txt

@@ -275,13 +275,14 @@ add_header_macro(
   signal.h
   DEPENDS
     .llvm-libc-macros.signal_macros
+    .llvm-libc-types.__sighandler_t
+    .llvm-libc-types.pid_t
     .llvm-libc-types.sig_atomic_t
+    .llvm-libc-types.siginfo_t
     .llvm-libc-types.sigset_t
+    .llvm-libc-types.stack_t
     .llvm-libc-types.struct_sigaction
     .llvm-libc-types.union_sigval
-    .llvm-libc-types.siginfo_t
-    .llvm-libc-types.stack_t
-    .llvm-libc-types.pid_t
 )
 
 add_header_macro(