public boolean isDanglingDeclaration() {
		return isPartialDeclaration() && fragments.length == 1;
	}
Returns true if this DIE has a DW_AT_declaration attribute and
does NOT have a matching inbound DW_AT_specification reference.

@return boolean true if this DIE has a DW_AT_declaration attribute and
does NOT have a matching inbound DW_AT_specification reference
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DIEAggregate.java