*/
public static IType[] getFunctionReturnType(IType[] types, String method,
int mask, org.eclipse.dltk.core.ISourceModule sourceModule,
int offset, String[] argNames) {
PHPTypeInferencer typeInferencer = new PHPTypeInferencer();
ModuleDeclaration moduleDeclaration = SourceParserUtil
.getModuleDeclaration(sourceModule, null);
IContext context = ASTUtils.findContext(sourceModule,
moduleDeclaration, offset);
IEvaluatedType evaluatedType;