[clang-tidy] Rewrite modernize-avoid-bind check.

This represents largely a full re-write of modernize-avoid-bind, adding
significant new functionality in the process. In particular:

* Both boost::bind and std::bind are now supported
* Function objects are supported in addition to functions
* Member functions are supported
* Nested calls are supported using capture-init syntax
* std::ref() and boost::ref() are now recognized, and will capture by reference.
* Rather than capturing with a global =, we now build up an individual
  capture list that is both necessary and sufficient for the call.
* Fixits are supported in a much larger variety of scenarios than before.

All previous tests pass under the re-write, but a large number of new
tests have been added as well.

Differential Revision: https://reviews.llvm.org/D70368

1 files changed, 8 insertions, 0 deletions

diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
index b96feecdf3d..91a196deb6f 100644
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -196,6 +196,14 @@ Improvements to clang-tidy
   <clang-tidy/checks/readability-redundant-string-init>` check now supports a
   `StringNames` option enabling its application to custom string classes.
 
+- Improved :doc:`modernize-avoid-bind
+  <clang-tidy/checks/modernize-avoid-bind>` check.
+
+  The check now supports supports diagnosing and fixing arbitrary callables instead of
+  only simple free functions. The `PermissiveParameterList` option has also been
+  added to address situations where the existing fix-it logic would sometimes generate
+  code that no longer compiles.
+
 Improvements to include-fixer
 -----------------------------