[PATCH] D35012: [refactor] Add the AST source selection component

[Alex Lorenz via Phabricator via cfe-commits]

arphaman created this revision.
Herald added a subscriber: mgorny.

This patch adds the base AST source selection component to the refactoring library. AST selection is represented using a tree of `SelectedASTNode` values. Each selected node gets its own selection kind, which can actually be `None` even in the middle of tree (e.g. statement in a macro whose child is in a macro argument). The initial version constructs a "raw" selection tree, without applying filters and canonicalisation operations to the nodes.


Repository:
  rL LLVM

https://reviews.llvm.org/D35012

Files:
  include/clang/Tooling/Refactoring/ASTSelection.h
  lib/Tooling/Refactoring/ASTSelection.cpp
  lib/Tooling/Refactoring/CMakeLists.txt
  lib/Tooling/Refactoring/SourceLocationUtils.h
  unittests/Tooling/ASTSelectionTest.cpp
  unittests/Tooling/CMakeLists.txt

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