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

clang/lib/CodeGen/ModuleBuilder.cpp

@@ -63,7 +63,7 @@ namespace {
         CoverageInfo(CoverageInfo),
         M(new llvm::Module(ModuleName, C)) {}
 
-    virtual ~CodeGeneratorImpl() {
+    ~CodeGeneratorImpl() override {
       // There should normally not be any leftover inline method definitions.
       assert(DeferredInlineMethodDefinitions.empty() ||
              Diags.hasErrorOccurred());