Test failure: global::LayoutClass.LayoutClassTest.SequentialClass()

[SakeTao]

Failed in: runtime-coreclr gcstress0x3-gcstress0xc 20250824.1

Failed tests:

coreclr linux x64 Checked gcstress0xc @ AzureLinux.3.Amd64.Open
    - global::LayoutClass.LayoutClassTest.SequentialClass()
    - global::LayoutClass.LayoutClassTest.SequentialClassNull()
    - global::LayoutClass.LayoutClassTest.DerivedClassWithEmptyBase()
    - global::LayoutClass.LayoutClassTest.ExplicitClass()
    - global::LayoutClass.LayoutClassTest.BlittableClass()
    - global::LayoutClass.LayoutClassTest.BlittableClassNull()
    - global::LayoutClass.LayoutClassTest.BlittableClassByInAttr()
    - global::LayoutClass.LayoutClassTest.BlittableClassByOutAttr()
    - global::LayoutClass.LayoutClassTest.SealedBlittableClass()
    - global::LayoutClass.LayoutClassTest.SealedBlittableClassByInAttr()
    - global::LayoutClass.LayoutClassTest.SealedBlittableClassByOutAttr()
    - global::LayoutClass.LayoutClassTest.SealedBlittablePinned()
    - global::LayoutClass.LayoutClassTest.BlittablePinned()
    - global::LayoutClass.LayoutClassTest.NestedLayoutClass()
    - global::FunctionPtr.RunGetDelForOutPtrTest()
    - global::FunctionPtr.RunGetDelForOutIntTest()

Error message:

Object reference not set to an instance of an object.

Stack trace:

   at LayoutClass.LayoutClassTest.SimpleSeqLayoutClassByRef(SeqClass p)
   at LayoutClass.LayoutClassTest.SequentialClass()
   at Program.<<Main>$>g__TestExecutor10|0_11(StreamWriter tempLogSw, StreamWriter statsCsvSw, <>c__DisplayClass0_0&)

[jkotas]

Fixed by #119028