Reland "[clang-tidy] Adding RestrictSystemIncludes check to Fuchsia module"

This relands r332125 with a fixed test.

llvm-svn: 332141
diff --git a/clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp b/clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp
index 67b3bc9..0d3bbfe 100644
--- a/clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/fuchsia/FuchsiaTidyModule.cpp
@@ -14,6 +14,7 @@
 #include "DefaultArgumentsCheck.h"
 #include "MultipleInheritanceCheck.h"
 #include "OverloadedOperatorCheck.h"
+#include "RestrictSystemIncludesCheck.h"
 #include "StaticallyConstructedObjectsCheck.h"
 #include "TrailingReturnCheck.h"
 #include "VirtualInheritanceCheck.h"
@@ -36,6 +37,8 @@
         "fuchsia-multiple-inheritance");
     CheckFactories.registerCheck<OverloadedOperatorCheck>(
         "fuchsia-overloaded-operator");
+    CheckFactories.registerCheck<RestrictSystemIncludesCheck>(
+        "fuchsia-restrict-system-includes");
     CheckFactories.registerCheck<StaticallyConstructedObjectsCheck>(
         "fuchsia-statically-constructed-objects");
     CheckFactories.registerCheck<TrailingReturnCheck>(