Updated snapshot.py to align with MemoryViz 0.2.0 changes

[lana-w]

Proposed Changes

Updated snapshot.py and test_snapshot.py to align with changes to JSON in MemoryViz 0.2.0.

Primary changes were:

• Replacing "name" with "type' when in reference to type of an object
• Using the ".class" and ".frame" types to replace usage of isClass and stack-frame.

Type of Change

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Type	Applies?
🚨 Breaking change (fix or feature that would cause existing functionality to change)
✨ New feature (non-breaking change that adds functionality)
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🚦 Test update (change that only adds or modifies tests)
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Questions and Comments

[coveralls]

Pull Request Test Coverage Report for Build 9900783809

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 91.744%

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Totals
Change from base Build 9864567042:	0.0%
Covered Lines:	2878
Relevant Lines:	3137

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💛 - Coveralls

[david-yz-liu]

I'm not sure why you changed the call to type here

[lana-w]

I realize now that the type call works directly, so have changed it back for consistency!

[david-yz-liu]

this change is showing up because you reordered this entry, but you should move it back to its original spot to ensure the diff is as small as possible

(same as in the other test cases below)

[lana-w]

Done!

[lana-w]

@david-yz-liu Resolved both comments above!