Update aosp/master clang for rebase to r230699.

Change-Id: I6a546ab3d4ae37119eebb735e102cca4f80ab520
diff --git a/docs/Modules.rst b/docs/Modules.rst
index df471a4..1d4c1f4 100644
--- a/docs/Modules.rst
+++ b/docs/Modules.rst
@@ -207,6 +207,15 @@
 ``-fmodules-search-all``
   If a symbol is not found, search modules referenced in the current module maps but not imported for symbols, so the error message can reference the module by name.  Note that if the global module index has not been built before, this might take some time as it needs to build all the modules.  Note that this option doesn't apply in module builds, to avoid the recursion.
 
+``-fno-modules-implicit-maps``
+  Suppresses the implicit search for files called ``module.modulemap`` and similar. Instead, module files need to be explicitly specified via ``-fmodule-map-file`` or transitively used.
+
+``-fno-implicit-modules``
+  All modules used by the build must be specified with ``-fmodule-file``.
+
+``-fmodule-file=<file>``
+  Load the given precompiled module file.
+
 Module Semantics
 ================