supersize: Fix name normalization of top-level lambdas

tools/binary_size/libsupersize/describe.py

 # Copyright 2017 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 """Methods for converting model objects to human-readable formats."""
 
 import datetime
 import itertools
 import time
 
 import models
@@ skipping 108 matching lines @@
         for l in self._DescribeSymbolGroupChildren(s, indent=indent + 1):
           yield l
 
   def _DescribeSymbolGroup(self, group):
     total_size = group.pss
     code_syms = group.WhereInSection('t')
     code_size = code_syms.pss
     ro_size = code_syms.Inverted().WhereInSection('r').pss
     unique_paths = set(s.object_path for s in group)
     header_desc = [
-        'Showing {:,} symbols with total pss: {} bytes'.format(
-            len(group), int(total_size)),
+        'Showing {:,} symbols ({:,} unique) with total pss: {} bytes'.format(
+            len(group), group.CountUniqueSymbols(), int(total_size)),
         '.text={:<10} .rodata={:<10} other={:<10} total={}'.format(
             _PrettySize(int(code_size)), _PrettySize(int(ro_size)),
             _PrettySize(int(total_size - code_size - ro_size)),
             _PrettySize(int(total_size))),
         'Number of object files: {}'.format(len(unique_paths)),
         '',
         'First columns are: running total, address, pss',
     ]
     children_desc = self._DescribeSymbolGroupChildren(group)
     return itertools.chain(header_desc, children_desc)
@@ skipping 150 matching lines @@
 
 def GenerateLines(obj, verbose=False, recursive=False):
   """Returns an iterable of lines (without \n) that describes |obj|."""
   return Describer(verbose=verbose, recursive=recursive).GenerateLines(obj)
 
 
 def WriteLines(lines, func):
   for l in lines:
     func(l)
     func('\n')