Incorrect YAML highlighting

[eevleevs]

Hello, I am getting an incorrect highlighting when a multi-word key follows a multi-line string.

expected:

bill-to:  &id001
    street: |
        123 Tornado Alley
        Suite 16
    city name: East Centerville

actual (from kitchen sink):

Note how "city name" has two different colors.

[brynne8]

A patch for yaml highlighter will fix this: brynne8@74c3ff3

I don't quote understand why the old highlighter created two rules for yaml key-value. So I simplified it to a single rule and works well.

[eevleevs]

Confirmed, thanks.

[andrewnester]

It's fixed in 1.15+ with this PR #4706