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

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 -format

http://reviews.llvm.org/D8925



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234679 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/ExecutionEngine/RTDyldMemoryManager.h

@@ -56,7 +56,7 @@ class RTDyldMemoryManager : public MCJITMemoryManager,
   void operator=(const RTDyldMemoryManager&) = delete;
 public:
   RTDyldMemoryManager() {}
-  virtual ~RTDyldMemoryManager();
+  ~RTDyldMemoryManager() override;
 
   void registerEHFrames(uint8_t *Addr, uint64_t LoadAddr, size_t Size) override;
   void deregisterEHFrames(uint8_t *Addr, uint64_t LoadAddr, size_t Size) override;