[Diagnostics] Refactor `FailureDiagnostic` to operate on `TypedNode`#31104

Merged

xedin merged 8 commits intoswiftlang:masterfrom

xedin:compute-diag-anchors-on-demand

Apr 20, 2020

Commits on Apr 17, 2020

[Diagnostics] Provide anchors on demand instead of storing in `FailureDiagnostic`
xedin
committed
[Diagnostics] Switch `get{Raw}Anchor` to return `TypedNode`
xedin
committed
[Diagnostics] Switch `getConstraintLocator` variants to accept `TypedNode`
xedin
committed
[Diagnostics] Switch `getContextualType*` to use `TypedNode`
xedin
committed
[Diagnostics] Switch `getType` to use `TypedNode`
xedin
committed
[Diagnostics] Resolve const-ness problems introduced by `TypedNode`
xedin
committed
[Diagnostics] Add helper functions to work with anchors - `{castTo, getAs, is}Expr`
xedin
committed
[Diagnostics] Adjust `getCallInfo` to accept `TypedNode` instead of expression
xedin
committed