Include non-explicit submodules in exported module list

This change fixes Richard's testcase for r193815.  Now we include non-explicit
submodules into the list of exports.

The test failed previously because:
- recursive_visibility_a1.inner is not imported (only recursive_visibility_a1 is),
- thus the 'inner' submodule is not showing up in any of the import lists,
- and because of this getExportedModules() is not returning the
  correct module set -- it only considers modules that are imported.

The fix is to make Module::getExportedModules() include non-explicit submodules
into the list of exports.

llvm-svn: 194018

1 files changed, 5 insertions, 0 deletions

diff --git a/clang/test/Modules/Inputs/recursive_visibility_c.h b/clang/test/Modules/Inputs/recursive_visibility_c.h
new file mode 100644
index 00000000000..a978a3c0a56
--- /dev/null
+++ b/clang/test/Modules/Inputs/recursive_visibility_c.h
@@ -0,0 +1,5 @@
+@import recursive_visibility_b;
+template<template<typename T> class Y> void g() {
+  f(typename Y<A1_Inner::X>::type{});
+  f(typename Y<A2_More_Inner::X>::type{});
+}