IC navigator: added support for include files (#17784)

* ic fixed navigator crash when track wrong/missed

Also fixed an issue with getNimcacheDir not observing the outDir.

* closer, but not sure how to test[skip ci][ci skip]

* IC navigator: added support for include files

* update

* make posix happy via expandFilename

* update

Co-authored-by: Saem Ghani <saemghani+github@gmail.com>

compiler/options.nim

@@ -701,7 +701,10 @@ proc getNimcacheDir*(conf: ConfigRef): AbsoluteDir =
   result = if not conf.nimcacheDir.isEmpty:
              conf.nimcacheDir
            elif conf.backend == backendJs:
-             conf.projectPath / genSubDir
+             if conf.outDir.isEmpty:
+               conf.projectPath / genSubDir
+             else:
+               conf.outDir / genSubDir
            else:
             AbsoluteDir(getOsCacheDir() / splitFile(conf.projectName).name &
                nimcacheSuffix(conf))