[PATCH] D84310: [libTooling] Add assorted `EditGenerator` combinators.

[Yitzhak Mandelbaum via Phabricator via cfe-commits]

ymandel created this revision.
ymandel added reviewers: asoffer, gribozavr2.
Herald added a project: clang.

This patch adds various combinators that help in constructing `EditGenerator`s:

- `noEdits`
- `ifBound`, specialized to `ASTEdit`
- `flatten` and `flattenVector` which allow for easy construction from a set of sub edits.
- `shrinkTo`, which generates edits to shrink a given range to another that it encloses.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D84310

Files:
  clang/include/clang/Tooling/Transformer/MatchConsumer.h
  clang/include/clang/Tooling/Transformer/RangeSelector.h
  clang/include/clang/Tooling/Transformer/RewriteRule.h
  clang/lib/Tooling/Transformer/RewriteRule.cpp
  clang/unittests/Tooling/TransformerTest.cpp

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