public int compare(@Nullable String lhs, @Nullable String rhs) {
      if (lhs == rhs) {
        return 0;
      }
      if (lhs == null) {
        // lhs (null) comes just before justAfterNull.
        // If rhs is b, lhs comes first.
        if (rhs.equals(justAfterNull)) {
          return -1;
        }
        return justAfterNull.compareTo(rhs);
      }
      if (rhs == null) {

    public int compare(@Nullable String lhs, @Nullable String rhs) {
      if (lhs == rhs) {
        return 0;
      }
      if (lhs == null) {
        // lhs (null) comes just before justAfterNull.
        // If rhs is b, lhs comes first.
        if (rhs.equals(justAfterNull)) {
          return -1;
        }
        return justAfterNull.compareTo(rhs);
      }
      if (rhs == null) {

The [Alias] type now has an [Rhs] method that returns the type on the
right-hand side of its declaration: given `type A = B`, the `Rhs` of A

	default:
		return nil, errInvalidASTNode
	}
	rhs = *eltVal

	// If RHS is array compare each element.
	if arr, ok := rhs.ToArray(); ok {
		for _, element := range arr {
			// If we have an array we are on the wrong level.
			if cmp(element, *lhs) {
				return FromBool(true), nil
			}
		}
		return FromBool(false), nil
	}

	return FromBool(cmp(rhs, *lhs)), nil
}

	EscapeChar *Operand `parser:" (\"ESCAPE\" @@)? "`
}

// Between represents the RHS of a BETWEEN expression
type Between struct {
	Not   bool     `parser:" @\"NOT\"? "`
	Start *Operand `parser:" \"BETWEEN\" @@ "`
	End   *Operand `parser:" \"AND\" @@ "`
}

// In represents the RHS of an IN expression. The RHS can be a list-literal
// (i.e. enclosed in parentheses like `IN (1,2,4)`) or it could be a JSON path

pkg go/types, method (*Alias) Rhs() Type #66559...

    ): FirLiteralExpression<*>? {
        if (value == null || other.value == null) return null
        // NB: some utils accept very general types, and due to the way operation map works, we should up-cast rhs type.
        val rightType = when {
            function.symbol.callableId.isStringEquals -> CompileTimeType.ANY
            function.symbol.callableId.isStringPlus -> CompileTimeType.ANY

	tok := p.next()
	str := tok.String()
	var count int16
	switch tok.ScanToken {
	case scanner.Ident:
		if p.arch.Family == sys.ARM64 {
			p.errorf("rhs of shift must be integer: %s", str)
		} else {
			r2, ok := p.registerReference(str)
			if !ok {
				p.errorf("rhs of shift must be register or integer: %s", str)
			}
			count = (r2&15)<<8 | 1<<4
		}
	case scanner.Int, '(':
		p.back()
		x := int64(p.expr())

            // Binary expressions always use both operands.
            is KtBinaryExpression ->
                parent.left == child || parent.right == child

            // Binary expressions with type RHS always use its operand.
            is KtBinaryExpressionWithTypeRHS ->
                parent.left == child

            // Is expressions always use their LHS.
            is KtIsExpression ->

                )
            }
            is FirVariableAssignment -> {
                if (unsubstitutedKtSignature.symbol !is KtVariableLikeSymbol) return null
                val rhs = fir.rValue.psi as? KtExpression
                @Suppress("UNCHECKED_CAST") // safe because of the above check on targetKtSymbol
                KtSimpleVariableAccessCall(