private DataType getIntegralType(int size) {
		DataType dataType = integralGhidraPrimitives.get(size);
		if (dataType != null) {
			return dataType;
		}
		DataType resolved =
			resolve(AbstractIntegerDataType.getSignedDataType(size, getDataTypeManager()));
		integralGhidraPrimitives.put(size, resolved);
		return resolved;
	}
Returns the {@link DataTypeManager} associated with this analyzer.
@return DataTypeManager which this analyzer is using.
Ghidra/Features/PDB/src/main/java/ghidra/app/util/pdb/pdbapplicator/PdbPrimitiveTypeApplicator.java