[PATCH] D53716: [AST] Only store data for the NRVO candidate in ReturnStmt if needed.

[Bruno Ricci via Phabricator via cfe-commits]

riccibruno created this revision.
riccibruno added a reviewer: rjmccall.
riccibruno added a project: clang.
Herald added subscribers: cfe-commits, javed.absar.

Only store the NRVO candidate if needed in `ReturnStmt`.
A good chuck of all of the `ReturnStmt` have no NRVO candidate.
For all of them this saves one pointer.

This has no impact on `children()`.


Repository:
  rC Clang

https://reviews.llvm.org/D53716

Files:
  include/clang/AST/Stmt.h
  lib/AST/ASTImporter.cpp
  lib/AST/Stmt.cpp
  lib/Analysis/BodyFarm.cpp
  lib/CodeGen/CGObjC.cpp
  lib/Sema/SemaStmt.cpp
  lib/Serialization/ASTReaderStmt.cpp
  lib/Serialization/ASTWriterStmt.cpp

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