[clang-tidy] Adding alias for anon namespaces in header (fuchsia module)

[juliehockett]

Summary

Adding alias to google-build-namespaces to the Fuchsia module (checks for anonymous namespaces in headers).

[aaron.ballman]

LGTM aside from a minor docs nit.

docs/clang-tidy/checks/fuchsia-header-anon-namespaces.rst

7

Underlining is the wrong length.

clang-tidy/fuchsia/FuchsiaTidyModule.cpp

 //===--- FuchsiaTidyModule.cpp - clang-tidy--------------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 #include "../ClangTidy.h"
 #include "../ClangTidyModule.h"
 #include "../ClangTidyModuleRegistry.h"
+#include "../google/UnnamedNamespaceInHeaderCheck.h"
 #include "DefaultArgumentsCheck.h"
 #include "MultipleInheritanceCheck.h"
 #include "OverloadedOperatorCheck.h"
 #include "StaticallyConstructedObjectsCheck.h"
 #include "TrailingReturnCheck.h"
 #include "VirtualInheritanceCheck.h"
 
 using namespace clang::ast_matchers;
 
 namespace clang {
 namespace tidy {
 namespace fuchsia {
 
 /// This module is for Fuchsia-specific checks.
 class FuchsiaModule : public ClangTidyModule {
 public:
   void addCheckFactories(ClangTidyCheckFactories &CheckFactories) override {
     CheckFactories.registerCheck<DefaultArgumentsCheck>(
         "fuchsia-default-arguments");
+    CheckFactories.registerCheck<google::build::UnnamedNamespaceInHeaderCheck>(
+        "fuchsia-header-anon-namespaces");
     CheckFactories.registerCheck<MultipleInheritanceCheck>(
         "fuchsia-multiple-inheritance");
     CheckFactories.registerCheck<OverloadedOperatorCheck>(
         "fuchsia-overloaded-operator");
     CheckFactories.registerCheck<StaticallyConstructedObjectsCheck>(
         "fuchsia-statically-constructed-objects");
     CheckFactories.registerCheck<TrailingReturnCheck>(
         "fuchsia-trailing-return");

docs/ReleaseNotes.rst

 
 - New :doc:`cppcoreguidelines-avoid-goto
   <clang-tidy/checks/cppcoreguidelines-avoid-goto>` check
 
   The usage of ``goto`` for control flow is error prone and should be replaced
   with looping constructs. Every backward jump is rejected. Forward jumps are
   only allowed in nested loops.
 
+- New alias :doc:`fuchsia-header-anon-namespaces
+  <clang-tidy/checks/fuchsia-header-anon-namespaces>` to :doc:`google-build-namespaces
+  <clang-tidy/checks/google-build-namespaces>`
+  added.
+
 - New :doc:`fuchsia-multiple-inheritance
   <clang-tidy/checks/fuchsia-multiple-inheritance>` check
 
   Warns if a class inherits from multiple classes that are not pure virtual.
 
 - New :doc:`abseil-string-find-startswith
   <clang-tidy/checks/abseil-string-find-startswith>` check
 

docs/clang-tidy/checks/fuchsia-header-anon-namespaces.rst

+.. title:: clang-tidy - fuchsia-header-anon-namespaces
+.. meta::
+   :http-equiv=refresh: 5;URL=google-build-namespaces.html
+
+fuchsia-header-anon-namespaces
+==============================
+
+The fuchsia-header-anon-namespaces check is an alias, please see
+`google-build-namespace <google-build-namespaces.html>`_
+for more information.

docs/clang-tidy/checks/google-build-namespaces.rst

 .. title:: clang-tidy - google-build-namespaces
 
 google-build-namespaces
 =======================
 
 `cert-dcl59-cpp` redirects here as an alias for this check.
+`fuchsia-header-anon-namespaces` redirects here as an alias for this check.
 
 Finds anonymous namespaces in headers.
 
 https://google.github.io/styleguide/cppguide.html#Namespaces
 
 Corresponding cpplint.py check name: `build/namespaces`.
 
 Options

docs/clang-tidy/checks/list.rst

.. toctree::
    cppcoreguidelines-pro-type-cstyle-cast
    cppcoreguidelines-pro-type-member-init
    cppcoreguidelines-pro-type-reinterpret-cast
    cppcoreguidelines-pro-type-static-cast-downcast
    cppcoreguidelines-pro-type-union-access
    cppcoreguidelines-pro-type-vararg
    cppcoreguidelines-slicing
    cppcoreguidelines-special-member-functions
+   fuchsia-header-anon-namespaces (redirects to google-build-namespaces) <fuchsia-header-anon-namespaces>
    fuchsia-default-arguments
    fuchsia-multiple-inheritance
    fuchsia-overloaded-operator
    fuchsia-statically-constructed-objects
    fuchsia-trailing-return
    fuchsia-virtual-inheritance
    google-build-explicit-make-pair
    google-build-namespaces