"readonly" not highlighted property when appearing after "private" in constructor()

[bslatkin]

This code:

export class Searcher {
    private selection: Selection;

    constructor(readonly board: Board, private readonly originalSelection: Selection) {
        this.selection = {
            start: this.originalSelection.start,
            focus: this.originalSelection.focus,
            axis: this.originalSelection.axis,
        };
    }

   ...
}

Appears like this in Sublime Text build 3126, macOS 10.11.5, TypeScript plugin v2.0.1:

I expect the "readonly" and "private" modifiers to have the same highlighting, as red, not orange.

It appears that the syntax highlighter in GitHub also has this problem (as I file this issue):

Should I submit this issue against the TmLanguage definition instead?