Indent rule and smart pipeline operator causes error in es6 class method.

[optijon]

I'm getting the following error when trying to use the smart pipeline operator within an es6 class method.

    return someAlarm
      |> _.map(#, "level")

TypeError: Cannot read property 'match' of undefined
Occurred while linting /Projects/project/source/javascript/store/alarm-store.js:1
    at countTrailingLinebreaks (/Projects/project/node_modules/eslint/lib/rules/indent.js:788:47)
    at elements.forEach (/Projects/project/node_modules/eslint/lib/rules/indent.js:855:65)
    at Array.forEach (<anonymous>)
    at addElementListIndent (/Projects/project/node_modules/eslint/lib/rules/indent.js:830:22)
    at Object.addFunctionCallIndent [as listener] (/Projects/project/node_modules/eslint/lib/rules/indent.js:923:13)
    at Program:exit.listenerCallQueue.filter.forEach.nodeInfo (/Projects/project/node_modules/eslint/lib/rules/indent.js:1546:55)
    at Array.forEach (<anonymous>)
    at Program:exit (/Projects/project/node_modules/eslint/lib/rules/indent.js:1546:26)
    at listeners.(anonymous function).forEach.listener (/Projects/project/node_modules/eslint/lib/linter/safe-emitter.js:45:58)
    at Array.forEach (<anonymous>)

This seems to work if I switch _.map to #.map and the error is occurring on any function with an arity of 2 or more. I do not get this error when I move the pipeline to a function outside of a class. Removing the indent rule in eslint seems to resolve the error as well.

  rules: {
    "indent": [ "warn", 2, { "SwitchCase": 1 } ],
   ...

I'm using eslint-babel version 11.0.0-beta.0.

[Kai Cataldo]

Thank you for the PR. Now that @babel/eslint-parser has been released, we are making this repository read-only. If this is a change you would still like to advocate for, please reopen this in the babel/babel monorepo.