[clang] upgrade to 7.0.1

Summary:
Just catching up.

update-submodule: facebook-clang-plugins

Reviewed By: mbouaziz, martintrojer

Differential Revision: D13987271

fbshipit-source-id: 8f2c4c92a

facebook-clang-plugins

@@ -1 +1 @@
-Subproject commit 2342395ed9d6995ddc2ca879346454c884617529
+Subproject commit 1f77ff5f316a72aacdf9816ce36190a5d869a952

infer/src/clang/ClangCommand.ml

@@ -159,7 +159,7 @@ let clang_cc1_cmd_sanitizer cmd =
         else if String.equal option "-isystem" then
           match include_override_regex with
           | Some regexp when Str.string_match regexp arg 0 ->
-              fcp_dir ^/ "clang" ^/ "install" ^/ "lib" ^/ "clang" ^/ "7.0.0" ^/ "include"
+              fcp_dir ^/ "clang" ^/ "install" ^/ "lib" ^/ "clang" ^/ "7.0.1" ^/ "include"
           | _ ->
               arg
         else arg