Constant fast_rustc_ap_rustc_errors::emitter::MAX_SUGGESTION_HIGHLIGHT_LINES

pub const MAX_SUGGESTION_HIGHLIGHT_LINES: usize = 6;

Maximum number of lines we will print for a multiline suggestion; arbitrary.

This should be replaced with a more involved mechanism to output multiline suggestions that more closely mimmics the regular diagnostic output, where irrelevant code lines are elided.