[modules] Mark __wmmintrin_pclmul.h/__wmmintrin_aes.h as textual

[teemperor]

Summary

Since clang r332929 these two headers throw errors when included from somewhere else than their wrapper header. It seems marking them as textual is the best way to fix the builds.

Fixes this new module build error:

While building module '_Builtin_intrinsics' imported from ...:
In file included from <module-includes>:2:
In file included from lib/clang/7.0.0/include/immintrin.h:54:
In file included from lib/clang/7.0.0/include/wmmintrin.h:29:
lib/clang/7.0.0/include/__wmmintrin_aes.h:25:2: error: "Never use <__wmmintrin_aes.h> directly; include <wmmintrin.h> instead."
#error "Never use <__wmmintrin_aes.h> directly; include <wmmintrin.h> instead."

[teemperor]

(Wrong Vassil, sorry)

[craig.topper]

LGTM

lib/Headers/module.modulemap

explicit module intel {
     textual header "wbnoinvdintrin.h"
     textual header "cldemoteintrin.h"
     textual header "waitpkgintrin.h"
     textual header "movdirintrin.h"
     textual header "pconfigintrin.h"
     textual header "sgxintrin.h"
     textual header "ptwriteintrin.h"
 
+    textual header "__wmmintrin_aes.h"
+    textual header "__wmmintrin_pclmul.h"
+
     explicit module mm_malloc {
       requires !freestanding
       header "mm_malloc.h"
       export * // note: for <stdlib.h> dependency
     }
 
     explicit module cpuid {
       requires gnuinlineasm
explicit module mm3dnow {
       header "mm3dnow.h"
     }
 
     explicit module aes_pclmul {
       header "wmmintrin.h"
       export aes
       export pclmul
     }
-
-    explicit module aes {
-      header "__wmmintrin_aes.h"
-    }
-
-    explicit module pclmul {
-      header "__wmmintrin_pclmul.h"
-    }
   }
 
   explicit module systemz {
     requires systemz
     export *
 
     header "s390intrin.h"