Fixed iOS build

Author: TheMostDiligent

Graphics/GraphicsEngineOpenGL/include/GLStubsIOS.h

@@ -521,11 +521,11 @@ void UnsupportedGLFunctionStub( const T &Name )
 #define glTexStorage3DMultisample(...) UnsupportedGLFunctionStub("glTexStorage3DMultisample")
 #define glViewportIndexedf(...) UnsupportedGLFunctionStub("glViewportIndexedf")
 #define glScissorIndexed(...) UnsupportedGLFunctionStub("glScissorIndexed")
-#define glPolygonMode(...) UnsupportedGLFunctionStub("glPolygonMode")
+static void (*glPolygonMode) (GLenum face, GLenum mode) = nullptr;
 #define glEnablei(...) UnsupportedGLFunctionStub("glEnablei")
 #define glBlendFuncSeparatei(...) UnsupportedGLFunctionStub("glBlendFuncSeparatei")
 #define glBlendEquationSeparatei(...) UnsupportedGLFunctionStub("glBlendEquationSeparatei")
-#define glDisablei(...) UnsupportedGLFunctionStub("eglDisablei")
+#define glDisablei(...) UnsupportedGLFunctionStub("glDisablei")
 #define glColorMaski(...) UnsupportedGLFunctionStub("glColorMaski")
 #define glFramebufferTexture(...) UnsupportedGLFunctionStub("glFramebufferTexture")
 #define glFramebufferTexture1D(...) UnsupportedGLFunctionStub("glFramebufferTexture1D")