[PATCH] D31487: [coroutines] Fix rebuilding of implicit and dependent coroutine statements.

[Eric Fiselier via Phabricator via cfe-commits]

EricWF created this revision.

Certain implicitly generated coroutine statements, such as the calls to 'return_value()' or `return_void()` or `get_return_object_on_allocation_failure()`, cannot be built until the promise type is no longer dependent. This means they are not built until after the coroutine body statement has been transformed.

This patch fixes an issue where these statements would never be built for coroutine templates.

It also fixes a small issue where diagnostics about `get_return_object_on_allocation_failure()` were incorrectly suppressed.


https://reviews.llvm.org/D31487

Files:
  include/clang/AST/StmtCXX.h
  lib/AST/StmtCXX.cpp
  lib/Sema/CoroutineBuilder.h
  lib/Sema/SemaCoroutine.cpp
  lib/Sema/TreeTransform.h
  test/SemaCXX/coroutines.cpp

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