public DWARFRange getPCRange() {
		return diea.getPCRange();
	}
Returns the range covered by this CU, as defined by the lo_pc and high_pc attribute values,
defaulting to (0,0] if missing.

@return {@link DWARFRange} that this CU covers, never null
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFCompilationUnit.java