tree aa8c99d4d9a5d3f015a918280d30c57e225964d6
parent 5b7a5debed1eb6dfd2473dbf46a5d7e12878abae
author Eric Schweitz <eschweitz@nvidia.com> 1612820836 -0800
committer Copybara-Service <copybara-worker@google.com> 1612899399 -0800

[flang][fir] Add OpaqueAttr.

Add the opaque attribute class used in flang.

https://github.com/flang-compiler/f18-llvm-project/pull/402

Differential Revision: https://reviews.llvm.org/D96293

GitOrigin-RevId: 2cd0a113df2c12405e7a81f970f2df5a0de46df2