SplitEmptyFunction should be true in the Mozilla coding style

Summary:
As defined here: https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style#Classes
See for the downstream bug report: https://bugzilla.mozilla.org/show_bug.cgi?id=1399359

Reviewers: Typz, djasper

Reviewed By: Typz

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D37795

llvm-svn: 313182
diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index 42dceb1..bacf92a 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -515,7 +515,7 @@
     Expanded.BraceWrapping.AfterFunction = true;
     Expanded.BraceWrapping.AfterStruct = true;
     Expanded.BraceWrapping.AfterUnion = true;
-    Expanded.BraceWrapping.SplitEmptyFunction = false;
+    Expanded.BraceWrapping.SplitEmptyFunction = true;
     Expanded.BraceWrapping.SplitEmptyRecord = false;
     break;
   case FormatStyle::BS_Stroustrup: