[Diagnostics] Switch get{Raw}Anchor to return TypedNode

In preparation to anchor `ConstraintLocator` from `TypedNode`
let's refactor diagnostics (which is the biggest user of locators)
to support `TypedNode` instead of `Expr *`.
This commit is contained in:
Pavel Yaskevich
2020-04-15 16:45:24 -07:00
parent 4ed3665f86
commit f5714bf50d
2 changed files with 228 additions and 159 deletions

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