RFR 8166501 : compilation error in stackwalk.cpp on some gccs

[Brent Christian]

Hi,

Looks like my 8165372 change broke the slowdebug build.  Please review 
my fix (which also breaks up a pretty long line):

--- a/src/share/vm/prims/stackwalk.cpp
+++ b/src/share/vm/prims/stackwalk.cpp
@@ -331,10 +331,12 @@
      assert (use_frames_array(mode), "Bad mode for get live frame");
      RegisterMap regMap(jt, true);
      LiveFrameStream stream(jt, &regMap);
-    return fetchFirstBatch(stream, stackStream, mode, skip_frames, 
frame_count, start_index, frames_array, CHECK_NULL);
+    return fetchFirstBatch(stream, stackStream, mode, skip_frames, 
frame_count,
+                           start_index, frames_array, THREAD);
    } else {
      JavaFrameStream stream(jt, mode);
-    return fetchFirstBatch(stream, stackStream, mode, skip_frames, 
frame_count, start_index, frames_array, CHECK_NULL);
+    return fetchFirstBatch(stream, stackStream, mode, skip_frames, 
frame_count,
+                           start_index, frames_array, THREAD);
    }
  }

Thanks!
-Brent