Cannot reuse variable names after declaration fails #cli

[fgarcia]

• Version: v8.10.0
• Platform: Darwin zuhause 17.4.0 Darwin Kernel Version 17.4.0: Sun Dec 17 09:19:54 PST 2017; root:xnu-4570.41.2~1/RELEASE_X86_64 x86_64

While using the node interpreter, I can't re-declare a variable after making a mistake. Something like this:

> let dx = k
ReferenceError: k is not defined
> dx
ReferenceError: dx is not defined
> let dx = 1
SyntaxError: Identifier 'dx' has already been declared
> dx = 1
ReferenceError: dx is not defined
>

[vsemozhetbyt]

See #8441