ember-intl testing error

error.txt

```
  - broccoliBuilderErrorStack: TypeError: t(...).isPlaceholder is not a function
    at placeholderVisitorHandler (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/parse.js:81:11)
    at traverseSimpleImpl (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/types/lib/traverse/traverse.js:27:14)
    at Object.traverse (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/types/lib/traverse/traverse.js:21:3)
    at parseAndBuildMetadata (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/parse.js:65:7)
    at buildLiteralData (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/literal.js:53:35)
    at literalTemplate (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/literal.js:20:7)
    at Function.ast (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/builder.js:52:42)
    at Object.ast (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/helpers/lib/helpers.js:26:42)
    at fn (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/helpers/lib/index.js:245:30)
    at loadHelper (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/helpers/lib/index.js:248:40)
  - code: [undefined]
  - codeFrame: t(...).isPlaceholder is not a function
  - errorMessage: ember-intl/test-support/add-translations.js: t(...).isPlaceholder is not a function
        in /var/folders/7t/f0ch8jsn03jg4snyz6q6tfzcz9r1k1/T/broccoli-91437oA3LwWeQztG6/out-026-analyzer_ember_auto_import_analyzer
        at broccoli-persistent-filter:Babel > [Babel: ember-intl] (Babel: ember-intl)
  - errorType: Build Error
  - location:
    - column: [undefined]
    - file: ember-intl/test-support/add-translations.js
    - line: [undefined]
    - treeDir: /var/folders/7t/f0ch8jsn03jg4snyz6q6tfzcz9r1k1/T/broccoli-91437oA3LwWeQztG6/out-026-analyzer_ember_auto_import_analyzer
  - message: ember-intl/test-support/add-translations.js: t(...).isPlaceholder is not a function
        in /var/folders/7t/f0ch8jsn03jg4snyz6q6tfzcz9r1k1/T/broccoli-91437oA3LwWeQztG6/out-026-analyzer_ember_auto_import_analyzer
        at broccoli-persistent-filter:Babel > [Babel: ember-intl] (Babel: ember-intl)
  - name: BuildError
  - nodeAnnotation: Babel: ember-intl
  - nodeName: broccoli-persistent-filter:Babel > [Babel: ember-intl]
  - originalErrorMessage: t(...).isPlaceholder is not a function
  - stack: TypeError: t(...).isPlaceholder is not a function
    at placeholderVisitorHandler (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/parse.js:81:11)
    at traverseSimpleImpl (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/types/lib/traverse/traverse.js:27:14)
    at Object.traverse (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/types/lib/traverse/traverse.js:21:3)
    at parseAndBuildMetadata (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/parse.js:65:7)
    at buildLiteralData (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/literal.js:53:35)
    at literalTemplate (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/literal.js:20:7)
    at Function.ast (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/template/lib/builder.js:52:42)
    at Object.ast (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/helpers/lib/helpers.js:26:42)
    at fn (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/helpers/lib/index.js:245:30)
    at loadHelper (/Users/cmcculler/Projects/Pardot/fulcrum/node_modules/ember-intl/node_modules/@babel/helpers/lib/index.js:248:40)
    ```