message: renaming ambiguously named variables
diff: @@ -254,12 +254,12 @@ export default class PgClient {
  private async handleFieldValue(cards: ScopedCardService, fieldValue: FieldValue): Promise<Expression> {
  let { path, value } = fieldValue;
  - let expression = await this.makeExpression(cards, value);
  + let _expression = await this.makeExpression(cards, value);
  return await this.walkFilterFieldPath(
  await cards.get(fieldValue.typeContext),
  path,
  - expression,
  + _expression,
  async (fieldCard, expression) => {
  let buildValueExpression = await fieldCard.loadFeature('field-buildValueExpression');
  if (buildValueExpression) {
  @@ -276,7 +276,7 @@ export default class PgClient {
  private async handleFieldArity(cards: ScopedCardService, fieldArity: FieldArity): Promise<Expression> {
  let { path, singular, plural } = fieldArity;
  - let chosenExpression: CardExpression = await this.walkFilterFieldPath(
  + let _expression: CardExpression = await this.walkFilterFieldPath(
  await cards.get(fieldArity.typeContext),
  path,
  [],
  @@ -299,7 +299,7 @@ export default class PgClient {
  },
  }
  );
  - return await this.makeExpression(cards, chosenExpression);
  + return await this.makeExpression(cards, _expression);
  }
  private async walkFilterFieldPath(
  