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