syntax highlighting doesn't show nim proc definition line in some cases

[jrfondren]

With syntax = true in moerc.toml, a file that begins with the following lines will show with a blank first line:

proc test =
proc wtf) =

(note: proc test = is valid syntax for a void proc that takes no arguments)

There's no problem with these first lines:

proc test: void =
proc test() =

You can also open a file that begins with a valid proc line and then edit it to make the line vanish -- deleting one of the parens in proc test() = is enough.

You can also reveal the first line by prepending a new line -- just O in command mode is enough.

NB: the problem isn't that the highlighting is broken, but that the line isn't displayed at all

This complete example:

proc test =
  echo "Hello, world!"

is displayed by moe as:

1
2   echo "Hello, world!"
3

[jrfondren]

With a buffer in this state (with nim syntax highlighting on):

1 proc test =
2   echo <CURSOR>

Entering a graphical char will cause the first line to disappear. Example:

1
2   echo x<CURSOR>

deleting it brings the first line back.