Following on from #6084 we should handle the cases where the unbounded ResizeArrays in TcResultsSinkImpl (and potentially elsewhere?) are changed to be a list-like data structure that self-chunks its elements into arrays that are below the LOH threshold.

Then we need to use that structure in place of at least the capturedNameResolutions member of TcResultsSinkImpl, potentially more.

Per @TIHan in #6089 the structure doesn't have to be threadsafe as the compiler service thread is the only accessor.