[TRACKER] Up-to-date Conformance Tracker

[johnedquinn]

DO NOT MERGE

Description

As there are multiple PRs out with conformance additions, this is merely a PR that holds all unmerged PRs for the sake of determining which tests remain.

This PR merges the following PLK PRs:

• Simplifies joins and fixes bugs #1438
• Initializes Datum and adds functionality to evaluator #1451
• Eradicates premature failures when visiting error nodes #1453

This PR also merges the following TEST PRs:

• #112

With this, here is the up-to-date conformance tracker:

Conformance comparison report-Cross Engine

	Base (legacy)	eval	+/-
% Passing	92.55%	93.01%	0.46%
✅ Passing	5418	5446	28
❌ Failing	436	409	-27
🔶 Ignored	0	0	0
Total Tests	5854	5855	1

Conformance comparison report-Cross Commit-EVAL

	Base (41c00fd)	deaa9c0	+/-
% Passing	85.70%	93.01%	7.31%
✅ Passing	4986	5446	460
❌ Failing	832	409	-423
🔶 Ignored	0	0	0
Total Tests	5818	5855	37

License Information

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.