Use override for overridden function

src/OpenGL/compiler/intermediate.h

@@ -477,8 +477,8 @@ class TIntermBinary : public TIntermOperator {
 public:
 	TIntermBinary(TOperator o) : TIntermOperator(o) {}
 
-	virtual TIntermBinary* getAsBinaryNode() { return this; }
-	virtual void traverse(TIntermTraverser*);
+	TIntermBinary* getAsBinaryNode() override { return this; }
+	void traverse(TIntermTraverser*) override;
 
 	void setType(const TType &t) override
 	{
@@ -519,8 +519,8 @@ public:
 		}
 	}
 
-	virtual void traverse(TIntermTraverser*);
-	virtual TIntermUnary* getAsUnaryNode() { return this; }
+	void traverse(TIntermTraverser*) override;
+	TIntermUnary* getAsUnaryNode() override { return this; }
 
 	void setOperand(TIntermTyped* o) { operand = o; }
 	TIntermTyped* getOperand() { return operand; }
@@ -542,8 +542,8 @@ public:
 	TIntermAggregate(TOperator o) : TIntermOperator(o), userDefined(false) { endLine = { 0, 0, 0, 0 }; }
 	~TIntermAggregate() { }
 
-	virtual TIntermAggregate* getAsAggregate() { return this; }
-	virtual void traverse(TIntermTraverser*);
+	TIntermAggregate* getAsAggregate() override { return this; }
+	void traverse(TIntermTraverser*) override;
 
 	TIntermSequence& getSequence() { return sequence; }
 

src/OpenGL/libGLESv2/Texture.h

@@ -291,7 +291,7 @@ public:
 	void subImage(GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const gl::PixelStorageModes &unpackParameters, const void *pixels);
 	void subImageCompressed(GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void *pixels);
 	void copyImage(GLint level, GLenum internalformat, GLint x, GLint y, GLint z, GLsizei width, GLsizei height, GLsizei depth, Renderbuffer *source);
-	void copySubImage(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height, Renderbuffer *source);
+	void copySubImage(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height, Renderbuffer *source) override;
 
 	void setSharedImage(egl::Image *image);