Prepare tests for ARMv4.

* lib/tests/io/90-stat.c,
lib/tests/scaffold/76-pointer-arithmetic.c,
lib/tests/scaffold/7k-for-each-elem.c,
lib/tests/scaffold/85-sizeof.c: Prepare tests for ARMv4.

lib/tests/io/90-stat.c

@@ -26,7 +26,7 @@
 #include <sys/stat.h>
 
 
-#if __i386__
+#if __i386__ || __arm__
 #define stat xstat
 
 struct stat

lib/tests/scaffold/76-pointer-arithmetic.c

@@ -56,7 +56,7 @@ main ()
   oputs (itoa (foo_size));
   oputs ("\n");
   // FIXME: add *14, *18
-#if __i386__
+#if __i386__ || __arm__
   int foo_size_14 = 224;
   int foo_size_18 = 288;
 #elif __x86_64__

lib/tests/scaffold/7k-for-each-elem.c

@@ -47,7 +47,7 @@ struct section section;
 int
 main ()
 {
-#if __i386__
+#if __i386__ || __arm__
   int sym_size = 8;
 #elif __GNUC__ && __x86_64__
   int sym_size = 16;

lib/tests/scaffold/85-sizeof.c

@@ -34,7 +34,7 @@ struct bar
   };
 };
 
-#if __i386__
+#if __i386__ || __arm__
 #define ptr_size 4
 #define foo_size 20
 #define bar_size 12