[PATCH] D12326: [Modules] Emit warning if module cannot instantiate static class member.

[Serge Pavlov via cfe-commits]

sepavloff created this revision.
sepavloff added a subscriber: cfe-commits.

Instantiation of static class members can be not obvious in some cases. Using
modules can cause problems even more difficult to diagnose. PR24425 describes
one of such cases. As a way to assist a user, compiler could issue warnings if
code that is potentially erroneous. This patch implements a warning if a static
class member is used in a module, but cannot be instantiated there.

http://reviews.llvm.org/D12326

Files:
  include/clang/Basic/DiagnosticGroups.td
  include/clang/Basic/DiagnosticSemaKinds.td
  lib/Sema/SemaDecl.cpp
  test/Modules/Inputs/module-inst.cpp
  test/Modules/Inputs/module-inst/a.h
  test/Modules/Inputs/module-inst/module.modulemap

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