public default boolean isPinned() {
		return false; //most symbols can't be pinned.
	}
Returns true if the symbol is pinned to its current address. If it is pinned, then moving
or removing the memory associated with that address will not affect this symbol.

@return true if the symbol is pinned to its current address.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/symbol/Symbol.java