Add specific files back to .gitignore

Seems this was an oversight in d050fe3.
We don't want to ignore all those file, but only the compiled executables.

.gitignore

@@ -26,10 +26,22 @@ config
 config.h*
 config.status
 configure
-example-deconstructor*
-example-reformatter*
-run*
 stamp-h1
-test-*
 !config/config.h.in
 /packaging
+/tests/run-dumper
+/tests/run-emitter
+/tests/run-emitter-test-suite
+/tests/run-loader
+/tests/run-parser
+/tests/run-parser-test-suite
+/tests/run-scanner
+/tests/example-deconstructor
+/tests/example-deconstructor-alt
+/tests/example-reformatter
+/tests/example-reformatter-alt
+/tests/run-test-suite
+/tests/test-reader
+/tests/test-version
+/tests/*.log
+/tests/*.trs