Update coverage info.

Author: cjgillot

tests/run-make/coverage-reports/expected_show_coverage.continue.txt

@@ -65,6 +65,6 @@
    65|       |        }
    66|      0|        x = 3;
    67|       |    }
-   68|       |    let _ = x;
+   68|      1|    let _ = x;
    69|      1|}