Deprecate trivial node type check helpers #1720
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bmish
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This was referenced Dec 29, 2022
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This has come up a bunch recently and been an issue I have wanted to solve for a long time.
Trivial helpers in this file that only check a node's existence and/or type are deprecated in favor of inlining that check. We don't need a function for every type of node. We should inline these trivial checks and only check for node existence when it's actually a possibility a node might not exist.
And as written, these functions won't correctly narrow the type of the node, which we would need if we incorporate TypeScript: #1613
Removing these trivial functions would also help prepare for future TypeScript incorporation: