Handle base and member destructors in CheckFallThrough.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123667 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/AnalysisBasedWarnings.cpp b/lib/Sema/AnalysisBasedWarnings.cpp
index 3ded735..4463d3f 100644
--- a/lib/Sema/AnalysisBasedWarnings.cpp
+++ b/lib/Sema/AnalysisBasedWarnings.cpp
@@ -136,7 +136,16 @@
       HasPlainEdge = true;
       continue;
     }
-
+    if (CFGMemberDtor MD = CE.getAs<CFGMemberDtor>()) {
+      // A member destructor.
+      HasPlainEdge = true;
+      continue;
+    }
+    if (CFGBaseDtor BD = CE.getAs<CFGBaseDtor>()) {
+      // A base destructor.
+      HasPlainEdge = true;
+      continue;
+    }
     CFGStmt CS = CE.getAs<CFGStmt>();
     if (!CS.isValid())
       continue;