[PATCH] D21989: [OpenCL] Improve diagnostics of OpenCL types

[Anastasia Stulova via cfe-commits]

Anastasia updated this revision to Diff 62880.
Anastasia added a comment.

- Fixed misc formatting issues
- Added restrictions and testing for return types


http://reviews.llvm.org/D21989

Files:
  include/clang/Basic/DiagnosticSemaKinds.td
  lib/Sema/SemaDecl.cpp
  lib/Sema/SemaExpr.cpp
  lib/Sema/SemaType.cpp
  test/SemaOpenCL/invalid-block.cl
  test/SemaOpenCL/invalid-image.cl
  test/SemaOpenCL/invalid-pipes-cl2.0.cl
  test/SemaOpenCL/sampler_t.cl

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