cov: disable cfg(coverage) for llvm-cov runs

Pass --no-cfg-coverage to cargo llvm-cov in xtask coverage commands to avoid dependency breakage on crates using cfg_attr(coverage, no_coverage).

Author: mamoreau-devolutions

xtask/src/cov.rs

@@ -53,6 +53,7 @@ pub fn report(sh: &Shell, html_report: bool) -> anyhow::Result<()> {
 
     if html_report {
         cmd!(sh, "{CARGO} llvm-cov --html")
+            .arg("--no-cfg-coverage")
             .arg("--ignore-filename-regex")
             .arg(COV_IGNORE_REGEX)
             .run()?;
@@ -283,6 +284,7 @@ impl CoverageReport {
         let output = cmd!(
             sh,
             "{CARGO} llvm-cov
+            --no-cfg-coverage
             --ignore-filename-regex {COV_IGNORE_REGEX}
             --json"
         )