Uninitialized variables: two little changes:
 * Treat compound assignment as a use, at Jordy's request.
 * Always add compound assignments into the CFG, so we can correctly diagnose the use in 'return x += 1;'


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160334 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/AnalysisBasedWarnings.cpp b/lib/Sema/AnalysisBasedWarnings.cpp
index d696283..19a7d6f 100644
--- a/lib/Sema/AnalysisBasedWarnings.cpp
+++ b/lib/Sema/AnalysisBasedWarnings.cpp
@@ -1220,6 +1220,7 @@
   else {
     AC.getCFGBuildOptions()
       .setAlwaysAdd(Stmt::BinaryOperatorClass)
+      .setAlwaysAdd(Stmt::CompoundAssignOperatorClass)
       .setAlwaysAdd(Stmt::BlockExprClass)
       .setAlwaysAdd(Stmt::CStyleCastExprClass)
       .setAlwaysAdd(Stmt::DeclRefExprClass)