NdrRangeMarshall, NdrRangeBufferSize, NdrRangeFree and
NdrByteCountPointerMemorySize should be declared static in
ndr_marshall.c instead.

Moved and duplicated the code below the "if child" statement into the
if and else block.

This was exposed by adding EXT_vertex_array_bgra support, previously we would
almost never hit this because color data being present would already prevent
us from using drawStridedFast(). Thanks to Stefan for spotting this.