patch 8.2.0350: Vim9: expression tests don't use recognized constants

Problem:    Vim9: expression tests don't use recognized constants.
Solution:   Recognize "true" and "false" as constants.  Make skipping work for
            assignment and expression evaluation.
diff --git a/src/version.c b/src/version.c
index 9c5fca8..c0e1b91 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    350,
+/**/
     349,
 /**/
     348,