Merge pull request llvm#11182 from augusto2112/fix-substring-test

[lldb] Fix TestSwiftSubstringFormatters

Author: augusto2112

lldb/test/API/functionalities/data-formatter/swift/substring/TestSwiftSubstringFormatters.py

@@ -43,7 +43,7 @@ def test_swift_substring_formatters(self):
         subalphabets = [alphabet[i:] for i in range(27)]
 
         self.expect(
-            "v substrings",
+            "v -A -- substrings",
             substrs=[
                 f'[{i}] = "{substring}"'
                 for i, substring in enumerate(subalphabets)