Fix Asan-i386-calls-Test AddressSanitizer.ShadowGapTest on FreeBSD

0x22000000 happens to be on the left of a heap allocation and the error
message is different (heap-buffer-overflow).
FreeBSD NetBSD have larger SHADOW_OFFSET (0x40000000) but let's try not
using #ifdef here.

llvm-svn: 338208

compiler-rt/lib/asan/tests/asan_test.cc

@@ -963,7 +963,7 @@ TEST(AddressSanitizer, ThreadNamesTest) {
 #if ASAN_NEEDS_SEGV
 TEST(AddressSanitizer, ShadowGapTest) {
 #if SANITIZER_WORDSIZE == 32
-  char *addr = (char*)0x22000000;
+  char *addr = (char*)0x23000000;
 #else
 # if defined(__powerpc64__)
   char *addr = (char*)0x024000800000;