prop validator fails to generate validation error message when using Symbols

[thomasleveil]

Version

2.6.10

Reproduction link

https://jsfiddle.net/zs5dan7x/

Steps to reproduce

• pass a Symbol as the value of a component prop which expects another type

What is expected?

the console should show the validation error message

What is actually happening?

the prop validator tries to build an validation error message, it fails with :

TypeError: Cannot convert a Symbol value to a string

[posva]

Marked as a bug because it crashes the application

[amumubuku]

Symbol('bad').toString()