Fix #4 (Gitlab issue)

Use generated locations for `indium-debugger-here', which works for both source
files and scripts with sourcemap mappings.

* indium-debugger.el (indium-debugger-here): Use generated locations.
* test/unit/indium-debugger-test.el: Add a regression test.

indium-debugger.el

@@ -313,9 +313,7 @@ remote source for that frame."
 When the position of the point is reached, pause the execution."
   (interactive)
   (indium-backend-continue-to-location (indium-current-connection-backend)
-				       (make-indium-location
-					:line (1- (line-number-at-pos))
-					:file buffer-file-name)))
+				       (indium-script-generated-location-at-point)))
 
 (defun indium-debugger-evaluate (expression)
   "Prompt for EXPRESSION to be evaluated.

test/unit/indium-debugger-test.el

@@ -137,7 +137,14 @@
     (with-fake-indium-connection
       (spy-on 'indium-backend-resume)
       (indium-debugger-resume)
-      (expect #'indium-backend-resume :to-have-been-called-with 'fake))))
+      (expect #'indium-backend-resume :to-have-been-called-with 'fake)))
+
+  (it "should call the backend when jumping to a location"
+    (with-fake-indium-connection
+      (spy-on 'indium-backend-continue-to-location)
+      (spy-on 'indium-script-generated-location-at-point :and-return-value 'location)
+      (indium-debugger-here)
+      (expect #'indium-backend-continue-to-location :to-have-been-called-with 'fake 'location))))
 
 (provide 'indium-debugger-test)
 ;;; indium-debugger-test.el ends here