Add the modernize-use-trailing-return check to rewrite function signatures to use trailing return types.

Patch by Bernhard Manfred Gruber.

llvm-svn: 360345

Author: AaronBallman

clang-tools-extra/clang-tidy/modernize/CMakeLists.txt

@@ -30,6 +30,7 @@ add_clang_library(clangTidyModernizeModule
   UseNoexceptCheck.cpp
   UseNullptrCheck.cpp
   UseOverrideCheck.cpp
+  UseTrailingReturnTypeCheck.cpp
   UseTransparentFunctorsCheck.cpp
   UseUncaughtExceptionsCheck.cpp
   UseUsingCheck.cpp

clang-tools-extra/clang-tidy/modernize/ModernizeTidyModule.cpp

@@ -35,6 +35,7 @@
 #include "UseNoexceptCheck.h"
 #include "UseNullptrCheck.h"
 #include "UseOverrideCheck.h"
+#include "UseTrailingReturnTypeCheck.h"
 #include "UseTransparentFunctorsCheck.h"
 #include "UseUncaughtExceptionsCheck.h"
 #include "UseUsingCheck.h"
@@ -87,6 +88,8 @@ class ModernizeModule : public ClangTidyModule {
     CheckFactories.registerCheck<UseNoexceptCheck>("modernize-use-noexcept");
     CheckFactories.registerCheck<UseNullptrCheck>("modernize-use-nullptr");
     CheckFactories.registerCheck<UseOverrideCheck>("modernize-use-override");
+    CheckFactories.registerCheck<UseTrailingReturnTypeCheck>(
+        "modernize-use-trailing-return-type");
     CheckFactories.registerCheck<UseTransparentFunctorsCheck>(
         "modernize-use-transparent-functors");
     CheckFactories.registerCheck<UseUncaughtExceptionsCheck>(