[clang] Make access to submodules via `iterator_range`

In file `clang/lib/Basic/Module.cpp` the `Module` class had `submodule_begin()` and `submodule_end()` functions to retrieve corresponding iterators for private vector of Modules. This commit removes mentioned functions, and replaces all of theirs usages with `submodules()` function and range-based for-loops.

Differential Revision: https://reviews.llvm.org/D148954

1 files changed, 2 insertions, 4 deletions

diff --git a/clang/lib/Frontend/FrontendAction.cpp b/clang/lib/Frontend/FrontendAction.cpp
index 3551967..c5f3efc 100644
--- a/clang/lib/Frontend/FrontendAction.cpp
+++ b/clang/lib/Frontend/FrontendAction.cpp
@@ -429,11 +429,9 @@ static std::error_code collectModuleHeaderIncludes(
   }
 
   // Recurse into submodules.
-  for (clang::Module::submodule_iterator Sub = Module->submodule_begin(),
-                                      SubEnd = Module->submodule_end();
-       Sub != SubEnd; ++Sub)
+  for (auto *Submodule : Module->submodules())
     if (std::error_code Err = collectModuleHeaderIncludes(
-            LangOpts, FileMgr, Diag, ModMap, *Sub, Includes))
+            LangOpts, FileMgr, Diag, ModMap, Submodule, Includes))
       return Err;
 
   return std::error_code();