Use 'override/final' instead of 'virtual' for overridden methods

Summary:
The patch is generated using clang-tidy misc-use-override check.

This command was used:

  tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py \
    -checks='-*,misc-use-override' -header-filter='llvm|clang' -j=32 -fix

Reviewers: dblaikie

Reviewed By: dblaikie

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D8926

llvm-svn: 234678
diff --git a/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp b/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
index 621718e..fbeffb8 100644
--- a/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
+++ b/clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
@@ -92,7 +92,7 @@
 public:
   ClangDiagPathDiagConsumer(DiagnosticsEngine &Diag)
     : Diag(Diag), IncludePath(false) {}
-  virtual ~ClangDiagPathDiagConsumer() {}
+  ~ClangDiagPathDiagConsumer() override {}
   StringRef getName() const override { return "ClangDiags"; }
 
   bool supportsLogicalOpControlFlow() const override { return true; }
@@ -199,7 +199,7 @@
     }
   }
 
-  ~AnalysisConsumer() {
+  ~AnalysisConsumer() override {
     if (Opts->PrintStats)
       delete TUTotalTimer;
   }
@@ -373,8 +373,7 @@
     return true;
   }
 
-  virtual void
-  AddDiagnosticConsumer(PathDiagnosticConsumer *Consumer) override {
+  void AddDiagnosticConsumer(PathDiagnosticConsumer *Consumer) override {
     PathConsumers.push_back(Consumer);
   }
 
@@ -724,7 +723,7 @@
 public:
   UbigraphViz(std::unique_ptr<raw_ostream> Out, StringRef Filename);
 
-  ~UbigraphViz();
+  ~UbigraphViz() override;
 
   void AddEdge(ExplodedNode *Src, ExplodedNode *Dst) override;
 };