Fix TestBatchMode for gcc

gcc by default does not accept for loop declarations in C files (one must choose C99 mode first,
which we don't). Place the declaration outside the loop, to make this code more conformant.

llvm-svn: 257166

lldb/packages/Python/lldbsuite/test/driver/batch_mode/main.c

@@ -25,7 +25,8 @@ main (int argc, char **argv)
     int do_crash = 0;
     int do_wait = 0;
 
-    for (int idx = 1; idx < argc; idx++)
+    int idx;
+    for (idx = 1; idx < argc; idx++)
     {
         if (strcmp(argv[idx], "CRASH") == 0)
             do_crash = 1;