[Fix] StackItem.GetHashCode for CompoundType

[cschuchardt88]

Description

Close #3544

Type of change

• Optimization (the change is only an optimization)
• Style (the change is only a code style for better maintenance or standard purpose)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Unit Tests

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[nan01ab]

There is such a cause here:

            var map1 = new Map();
            map1[1] = 2;
            map1[3] = 4;

            var map2 = new Map();
            map2[3] = 4;
            map2[1] = 2;
        
            Assert.AreEqual(map1.GetHashCode(), map2.GetHashCode());

Assert.AreEqual failed.
Because VM.Map uses OrderedDictionary internally, but OrderedDictionary is not ordered.

it should be fixed or not ?

[shargon]

It could be fixed in a new PR