fix(coverage): do not report transpiled files with no lines (#14699)

This commit omits files from the coverage report that have no
lines of code to report coverage for.

Fixes: https://github.com/denoland/deno/issues/14683

1 files changed, 3 insertions, 1 deletions

diff --git a/cli/tools/coverage/mod.rs b/cli/tools/coverage/mod.rs
index f89aaf52b..d895f8a7e 100644
--- a/cli/tools/coverage/mod.rs
+++ b/cli/tools/coverage/mod.rs
@@ -703,7 +703,9 @@ pub async fn cover_files(
       &out_mode,
     );
 
-    reporter.report(&coverage_report, original_source)?;
+    if !coverage_report.found_lines.is_empty() {
+      reporter.report(&coverage_report, original_source)?;
+    }
   }
 
   reporter.done();