When a pin has an alternate function selected, GetType() correctly
returns the alternate's type. However, GetCanonicalElectricalTypeName(),
GetElectricalTypeName(), and PlotPinType() were accessing m_type directly,
bypassing the alternate type lookup. This caused netlist exports to show
the wrong pin type (e.g., "no_connect" instead of "power_in") and the
NC symbol to be drawn incorrectly when alternates changed the pin type.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/22286
Seth Hillbrand
25430cfbb8