Update postmortem metadata generation script

See: https://github.com/nodejs/node/pull/32831
Change-Id: I1e537bf9378156e8c309dbf4e2532257c98ec151
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2191056Reviewed-by: Joyee Cheung <joyee@igalia.com>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Cr-Commit-Position: refs/heads/master@{#67817}

tools/gen-postmortem-metadata.py

@@ -260,6 +260,7 @@ extras_accessors = [
     'ExternalString, resource, Object, kResourceOffset',
     'SeqOneByteString, chars, char, kHeaderSize',
     'SeqTwoByteString, chars, char, kHeaderSize',
+    'UncompiledData, inferred_name, String, kInferredNameOffset',
     'UncompiledData, start_position, int32_t, kStartPositionOffset',
     'UncompiledData, end_position, int32_t, kEndPositionOffset',
     'SharedFunctionInfo, raw_function_token_offset, int16_t, kFunctionTokenOffsetOffset',