Fix --dsym-hint passed to llvm analyzer

tools/valgrind/asan/asan_symbolize.py

Index: tools/valgrind/asan/asan_symbolize.py
diff --git a/tools/valgrind/asan/asan_symbolize.py b/tools/valgrind/asan/asan_symbolize.py
index 2cdae08b18ab370fd81a0c427d3a323a6b33afac..6fa010f9237b98ae9a4fdebdd6aa5e8ebe9c7b1a 100755
--- a/tools/valgrind/asan/asan_symbolize.py
+++ b/tools/valgrind/asan/asan_symbolize.py
@@ -123,7 +123,7 @@ def make_chrome_osx_binary_name_filter(product_dir_path=''):
 # 1. The binary is a standalone executable or dynamic library in the product
 #    dir, the debug info is in "binary.dSYM" in the product dir.
 # 2. The binary is a standalone framework or .app bundle, the debug info is in
-#    "Framework.framework.dSYM" or "App.app.dSYM" in the product dir.
+#    "Framework.dSYM" or "App.dSYM" in the product dir.
 # 3. The binary is a framework or an .app bundle within another .app bundle
 #    (e.g. Outer.app/Contents/Versions/1.2.3.4/Inner.app), and the debug info
 #    is in Inner.app.dSYM in the product dir.
@@ -159,7 +159,7 @@ def chrome_dsym_hints(binary):
   # In case 2 this is the same as |outermost_bundle|.
   innermost_bundle = bundle_positions[-1]
   dsym_path = product_dir + [path_parts[innermost_bundle]]
-  result = '%s.dSYM' % os.path.join(*dsym_path)
+  result = '%s.dSYM' % os.path.splitext(os.path.join(*dsym_path))[0]
   return [result]