Error message is not intuitive for expression parsing error (dataprep)

[joohokim1]

Describe the bug
When I entered an expression which started with number error toast pops out.
Then I clicked, the "click to see detail", and I get this message.

For input string: "22222222222222222222222222"

This error message is rather not intuitive.

To Reproduce
Steps to reproduce the behavior:

1. Import and wrangle any dataset
2. Select set rule
3. Enter 222222222222222222 in expression input box.
4. See error

Expected behavior
Minimum: Expression parsing error: "222222222222222222222"
Better: Expression parsing error on: "222222222222222222222"
Best: Expression parsing error: wrong identifier: "22222222222222222"
One of messages above should be shown in the popup box, regardless of the first error message in the toast component.

Screenshots

Desktop (please complete the following information):

• OS: MacOS
• Browser: Chrome
• Version: 68.0.3440.106