message: Fix use after free
  Summary: ASAN found it
diff: @@ -180,8 +180,8 @@ TEST(ResStringPool, ReplaceStringsInXmlLayout) {
  if (type == android::ResXMLParser::START_TAG) {
  EXPECT_LT(tag_count, 5);
  size_t len;
  - android::String16 tag(parser.getElementName(&len));
  - auto actual_chars = android::String8(tag).string();
  + android::String8 tag(parser.getElementName(&len));
  + auto actual_chars = tag.string();
  auto expected_chars = expected_xml_tags[tag_count].c_str();
  EXPECT_STREQ(actual_chars, expected_chars);
  tag_count++;
  