Add tsan and ubsan to g-ir-scanner workaround.

Both of these need to link to their respective libraries to build.

mesonbuild/modules/gnome.py

@@ -607,9 +607,15 @@ class GnomeModule(ExtensionModule):
             if 'b_sanitize' in compiler.base_options:
                 sanitize = state.environment.coredata.base_options['b_sanitize'].value
                 cflags += compilers.sanitizer_compile_args(sanitize)
-                if 'address' in sanitize.split(','):
-                    internal_ldflags += ['-lasan']  # This must be first in ldflags
-                # FIXME: Linking directly to libasan is not recommended but g-ir-scanner
+                sanitize = sanitize.split(',')
+                # These must be first in ldflags
+                if 'address' in sanitize:
+                    internal_ldflags += ['-lasan']
+                if 'thread' in sanitize:
+                    internal_ldflags += ['-ltsan']
+                if 'undefined' in sanitize:
+                    internal_ldflags += ['-lubsan']
+                # FIXME: Linking directly to lib*san is not recommended but g-ir-scanner
                 # does not understand -f LDFLAGS. https://bugzilla.gnome.org/show_bug.cgi?id=783892
                 # ldflags += compilers.sanitizer_link_args(sanitize)