perf symbols: Rename [sl]name_alloc to match the members they refer to

So we now have:

   dso->short_name
   dso->short_name_len
   dso->short_name_allocated

Ditto for the 'long  variants. To more quickly grasp what they refer to.

Suggested-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-nu228f8vlp9w0lr7c0q77dqi@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index bac817a..f66f309 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -764,7 +764,7 @@
 				goto out;
 			}
 			dso__set_long_name(map->dso, long_name);
-			map->dso->lname_alloc = 1;
+			map->dso->long_name_allocated = 1;
 			dso__kernel_module_get_build_id(map->dso, "");
 		}
 	}
@@ -936,7 +936,7 @@
 			goto out_problem;
 
 		map->dso->short_name = name;
-		map->dso->sname_alloc = 1;
+		map->dso->short_name_allocated = 1;
 		map->end = map->start + event->mmap.len;
 	} else if (is_kernel_mmap) {
 		const char *symbol_name = (event->mmap.filename +