[PATCH] D55534: [AST] Store "UsesADL" information in CallExpr.

[Eric Fiselier via Phabricator via cfe-commits]

EricWF created this revision.
EricWF added reviewers: fowles, rsmith, klimek.
Herald added a reviewer: shafik.

Currently the Clang AST doesn't store information about how the callee of a CallExpr was found. Specifically if it was found using ADL.

However, this information is invaluable to tooling. Consider a tool which renames usages of a function. If the originally CallExpr was formed using ADL, then the tooling may need to additionally qualify the replacement.
Without information about how the callee was found, the tooling is left scratching it's head. Additionally, we want to be able to match ADL calls as quickly as possible, which means avoiding computing the answer on the fly.

This patch changes `CallExpr` to store whether it's callee was found using ADL. It does not change the size of any AST nodes.


Repository:
  rC Clang

https://reviews.llvm.org/D55534

Files:
  include/clang/AST/Expr.h
  include/clang/AST/ExprCXX.h
  include/clang/AST/Stmt.h
  include/clang/ASTMatchers/ASTMatchers.h
  include/clang/Sema/Overload.h
  include/clang/Sema/Sema.h
  lib/AST/ASTDumper.cpp
  lib/AST/ASTImporter.cpp
  lib/AST/Expr.cpp
  lib/Sema/SemaExpr.cpp
  lib/Sema/SemaOverload.cpp
  lib/Serialization/ASTReaderStmt.cpp
  lib/Serialization/ASTWriterStmt.cpp
  test/AST/ast-dump-expr.cpp
  unittests/ASTMatchers/ASTMatchersNodeTest.cpp

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