Space leak in Intl CreateNumberFormat. Dan, can you please have a look?

(Regression range seems to be a red herring, since this bug occurs in differing contexts.)

ClusterFuzz has detected this issue as fixed in range 46678:46679.

Detailed report: https://clusterfuzz.com/testcase?key=6697727705743360

Fuzzer: inferno_js_fuzzer
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: Indirect-leak
Crash Address: 
Crash State:
  uprv_malloc_59
  icu_59::UMemory::operator new
  icu_59::DecimalFormat::operator=
  
Sanitizer: address (ASAN)

Regressed: V8: 44058:44059
Fixed: V8: 46678:46679

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6697727705743360


See https://github.com/google/clusterfuzz-tools for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 6697727705743360 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.