Fix virtual/override warnings in new MIPS code.

[labath]

I think you can commit things like this as obvious. :)

[tberghammer]

I agree with Pavel, that you don't have to send these trivial changes for core review

lldb/trunk/source/Plugins/Instruction/MIPS/EmulateInstructionMIPS.h

SupportsEmulatingInstructionsOfTypeStatic (lldb_private::InstructionType inst_type)
                 return true;
 
             case lldb_private::eInstructionTypeAll:
                 return false;
         }
         return false;
     }
 
-    virtual lldb_private::ConstString
-    GetPluginName();
+    lldb_private::ConstString
+    GetPluginName() override;
 
     virtual lldb_private::ConstString
     GetShortPluginName()
     {
         return GetPluginNameStatic();
     }
 
-    virtual uint32_t
-    GetPluginVersion()
+    uint32_t
+    GetPluginVersion() override
     {
         return 1;
     }
 
     bool
-    SetTargetTriple (const lldb_private::ArchSpec &arch);
+    SetTargetTriple (const lldb_private::ArchSpec &arch) override;
     
     EmulateInstructionMIPS (const lldb_private::ArchSpec &arch);
 
-    virtual bool
-    SupportsEmulatingInstructionsOfType (lldb_private::InstructionType inst_type)
+    bool
+    SupportsEmulatingInstructionsOfType (lldb_private::InstructionType inst_type) override
     {
         return SupportsEmulatingInstructionsOfTypeStatic (inst_type);
     }
 
-    virtual bool 
-    ReadInstruction ();
+    bool
+    ReadInstruction () override;
     
-    virtual bool
-    EvaluateInstruction (uint32_t evaluate_options);
+    bool
+    EvaluateInstruction (uint32_t evaluate_options) override;
 
     bool
     SetInstruction (const lldb_private::Opcode &insn_opcode, 
                     const lldb_private::Address &inst_addr, 
                     lldb_private::Target *target) override;
 
-    virtual bool
+    bool
     TestEmulation (lldb_private::Stream *out_stream, 
                    lldb_private::ArchSpec &arch, 
-                   lldb_private::OptionValueDictionary *test_data)
+                   lldb_private::OptionValueDictionary *test_data) override
     {
         return false;
     }
 
-    virtual bool
+    bool
     GetRegisterInfo (lldb::RegisterKind reg_kind,
                      uint32_t reg_num, 
-                     lldb_private::RegisterInfo &reg_info);
+                     lldb_private::RegisterInfo &reg_info) override;
 
-    virtual bool
-    CreateFunctionEntryUnwind (lldb_private::UnwindPlan &unwind_plan);
+    bool
+    CreateFunctionEntryUnwind (lldb_private::UnwindPlan &unwind_plan) override;
 
 
 protected:
 
     typedef struct
     {
         const char *op_name;
         bool (EmulateInstructionMIPS::*callback) (llvm::MCInst& insn);