test: remove obsolete debugger tests

The tests in `test/debugger` all fail since the removal of the
pre-inspector debugger (if they weren't already failing). They do not
run in CI (probably because they were never reliable). Remove them and
associated fixtures.

PR-URL: #15139
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Makefile

@@ -386,9 +386,6 @@ test-pummel: all
 test-internet: all
 	$(PYTHON) tools/test.py internet
 
-test-debugger: all
-	$(PYTHON) tools/test.py debugger
-
 test-inspector: all
 	$(PYTHON) tools/test.py inspector
 

doc/api/debugger.md

@@ -125,18 +125,18 @@ It is also possible to set a breakpoint in a file (module) that
 is not loaded yet:
 
 ```txt
-$ node inspect test/fixtures/break-in-module/main.js
+$ node inspect main.js
 < Debugger listening on ws://127.0.0.1:9229/4e3db158-9791-4274-8909-914f7facf3bd
 < For help see https://nodejs.org/en/docs/inspector
 < Debugger attached.
-Break on start in test/fixtures/break-in-module/main.js:1
+Break on start in main.js:1
 > 1 (function (exports, require, module, __filename, __dirname) { const mod = require('./mod.js');
   2 mod.hello();
   3 mod.hello();
 debug> setBreakpoint('mod.js', 22)
 Warning: script 'mod.js' was not loaded yet.
 debug> c
-break in test/fixtures/break-in-module/mod.js:22
+break in mod.js:22
  20 // USE OR OTHER DEALINGS IN THE SOFTWARE.
  21
 >22 exports.hello = function() {

test/README.md

@@ -16,7 +16,6 @@ On how to run tests in this directory, see
 |addons             |Yes            |Tests for [addon](https://nodejs.org/api/addons.html) functionality along with some tests that require an addon to function  properly.|
 |cctest             |Yes            |C++ test that is run as part of the build process.|
 |common             |               |Common modules shared among many tests. [Documentation](./common/README.md)|
-|debugger           |No             |Tests for [debugger](https://nodejs.org/api/debugger.html) functionality along with some tests that require an addon to function properly.|
 |fixtures           |               |Test fixtures used in various tests throughout the test suite.|
 |gc                 |No             |Tests for garbage collection related functionality.|
 |inspector          |Yes            |Tests for the V8 inspector integration.|