Merge branch 'mr/pmderodat/unparsing' into 'master'

Testsuite: disable unparsing tests in Valgrind mode

See merge request eng/libadalang/libadalang!1510

testsuite/drivers/unparser_driver.py

@@ -2,6 +2,8 @@
 
 import os.path
 
+from e3.testsuite.driver.classic import TestSkip
+
 from drivers.base_driver import BaseDriver
 
 
@@ -28,6 +30,12 @@ def unparsing_config_filename(self) -> str:
         )
 
     def run(self) -> None:
+        # TODO (eng/libadalang/prettier-ada#10) Prettier-ada is known to leak
+        # memory. Until this is fixed, do not bother running related tests in
+        # Valgrind mode.
+        if self.env.options.valgrind:
+            raise TestSkip("Prettier-ada is known to leak memory")
+
         # Run the unparser on "input.ada" for the given grammar rule and
         # unparse it with the default unparsing configuration, with a dump of
         # the Prettier document.