private boolean canRename() {
		return !(dataType instanceof BuiltInDataType ||
			dataType instanceof MissingBuiltInDataType || dataType instanceof Array ||
			dataType instanceof Pointer);
	}
Returns true if this dataType node uses and editor that is different than Java's default
editor.

@return true if this dataType node has a custom editor.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/tree/DataTypeNode.java