public boolean isEntry() {
		return isEntry;
	}
Returns the type of processor symbol (if this was defined by a pspec) or null if this
is not a processor symbol or it was not specified in the pspec file.  It basically allows
a pspec file to give more information about a symbol such as if code or a code pointer is
expected to be at the symbol's address.
@return the ProcesorSymbolType if it has one.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/lang/AddressLabelInfo.java