Speculative fix for asan/TestCases/Darwin/cstring_section.c

It's been failing since https://green.lab.llvm.org/job/llvm.org/job/clang-stage1-RA/1812

It seems __TEXT,__cstring now comes before __TEXT,__const.

Author: zmodem

compiler-rt/test/asan/TestCases/Darwin/cstring_section.c

@@ -6,10 +6,10 @@
 // Check that "Hello.\n" is in __asan_cstring and not in __cstring.
 // CHECK: Contents of section {{.*}}__asan_cstring:
 // CHECK: 48656c6c {{.*}} Hello.
-// CHECK: Contents of section {{.*}}__const:
-// CHECK-NOT: 48656c6c {{.*}} Hello.
 // CHECK: Contents of section {{.*}}__cstring:
 // CHECK-NOT: 48656c6c {{.*}} Hello.
+// CHECK: Contents of section {{.*}}__const:
+// CHECK-NOT: 48656c6c {{.*}} Hello.
 
 int main(int argc, char *argv[]) {
   argv[0] = "Hello.\n";