[v3.8.6] Optimize code size: Add an internal method ( Node.getUITransformComp ) which could be mangled to avoid invoking the code ._uiProps.uiTransformComp that could not be mangled.

[v3.8.6] Optimize code size: Add an internal method ( Node.getUITransformComp ) which could be mangled to avoid invoking the code ._uiProps.uiTransformComp that could not be mangled. #5413