export COMPlus_TieredCompilation=1
export COMPlus_TC_OnStackReplacement=1
export COMPlus_TC_QuickJitForLoops=1

  Starting:    System.Text.Json.Tests (parallel test collections = on, max threads = 2)
    System.Text.Json.Tests.Utf8JsonReaderTests.ReadJsonStringsWithCommentsAndTrailingCommas(jsonString: "{\"Property1\": {\"Property1.1\": 42} // comment\n"...) [FAIL]

System.Text.Json.Tests.Utf8JsonReaderTests::ReadJsonStringsWithCommentsAndTrailingCommas, IL size = 399, hash=0xc1a3563b 
Tier1-OSR @0x159