code: @Pure
  	@Inline(value="new $3($1, $2)", imported=IntegerRange.class, statementExpression=false)
  	public static IntegerRange operator_upTo(final int a, final int b) {
  		return new IntegerRange(a, b);
  	}
docs: The <code>..</code> operator yields an {@link IntegerRange}.
  
  @param a the start of the range.
  @param b the end of the range.
  @return an {@link IntegerRange}. Never <code>null</code>.
  @since 2.3