REPL multiline bug

[ry]

> ./target/debug/deno
> 1 + 2
3
> 1 + 2 +
SyntaxError: Unexpected end of input

[hayd]

Also @kevinkassimo 's report:

> var a = "{";

[hayd]

Perhaps can simply evaluate each line and if it's SyntaxError with "Unexpected end of input" message then await the next line.

Wait until after #1169 .

[kevinkassimo]

@hayd it has pitfalls when handling things like

> eval("const a = 1; {");

[hayd]

Perhaps a --check like function to verify syntax without evaluation... Prior to evaluation.

[daynin]

I think we can do it when it's done (kkawakam/rustyline#182)

[bartlomieju]

No longer happening in v0.5.0, there's still work to be done on REPL but I believe we can close this issue now.