fix: address file:// issue with CJS (#39)

Author: bcoe

lib/report.js

@@ -112,6 +112,8 @@ class Report {
   _filterProcessCov (v8ProcessCov) {
     const result = []
     for (const v8ScriptCov of v8ProcessCov.result) {
+      // TODO: implement real fix from https://github.com/nodejs/node/issues/23783
+      v8ScriptCov.url = v8ScriptCov.url.replace(/^file:\/\//, '')
       if (this.exclude.shouldInstrument(v8ScriptCov.url) &&
         (!this.omitRelative || isAbsolute(v8ScriptCov.url))) {
         result.push(v8ScriptCov)

test/integration.js.snap

@@ -8,12 +8,12 @@ second
 --------------------|----------|----------|----------|----------|-------------------|
 File                |  % Stmts | % Branch |  % Funcs |  % Lines | Uncovered Line #s |
 --------------------|----------|----------|----------|----------|-------------------|
-All files           |    94.97 |    72.22 |        0 |    94.97 |                   |
+All files           |       95 |    72.22 |        0 |       95 |                   |
  bin                |    87.76 |     62.5 |      100 |    87.76 |                   |
   c8.js             |    87.76 |     62.5 |      100 |    87.76 | 35,39,46,47,48,49 |
- lib                |    96.62 |    62.07 |      100 |    96.62 |                   |
+ lib                |    96.65 |    62.07 |      100 |    96.65 |                   |
   parse-args.js     |    97.47 |    44.44 |      100 |    97.47 |             55,56 |
-  report.js         |    96.09 |       70 |      100 |    96.09 |    56,57,95,96,97 |
+  report.js         |    96.15 |       70 |      100 |    96.15 |    56,57,95,96,97 |
  test/fixtures      |    95.16 |    94.12 |        0 |    95.16 |                   |
   async.js          |      100 |      100 |      100 |      100 |                   |
   multiple-spawn.js |      100 |      100 |      100 |      100 |                   |