Basic: restore {,u}intptr_t on NetBSD/ARM

NetBSD uses `long int` for `intptr_t` on ARM.  This was changed in SVN
r316046, referenced against other compilers.  However, NetBSD's
reference was incorrect as the current clang behaviour is more
up-to-date.  Restore the original behaviour for that target.

llvm-svn: 316204
diff --git a/clang/lib/Basic/Targets/ARM.cpp b/clang/lib/Basic/Targets/ARM.cpp
index 992cfbd..1b236dd 100644
--- a/clang/lib/Basic/Targets/ARM.cpp
+++ b/clang/lib/Basic/Targets/ARM.cpp
@@ -236,9 +236,10 @@
     break;
   }
 
-  IntPtrType = (Triple.isOSDarwin() || Triple.getOS() == llvm::Triple::OpenBSD)
-                   ? SignedLong
-                   : SignedInt;
+  bool IsOpenBSD = Triple.getOS() == llvm::Triple::OpenBSD;
+  bool IsNetBSD = Triple.getOS() == llvm::Triple::NetBSD;
+  IntPtrType =
+      (Triple.isOSDarwin() || IsOpenBSD || IsNetBSD) ? SignedLong : SignedInt;
 
   // Cache arch related info.
   setArchInfo();