patch 9.0.1188: return value of type() for class and object unclear

Problem:    Return value of type() for class and object unclear.
Solution:   Add v:t_object and v:t_class.
diff --git a/src/evalvars.c b/src/evalvars.c
index 8061a50..68df1cb 100644
--- a/src/evalvars.c
+++ b/src/evalvars.c
@@ -139,6 +139,8 @@
     {VV_NAME("t_job",		 VAR_NUMBER), NULL, VV_RO},
     {VV_NAME("t_channel",	 VAR_NUMBER), NULL, VV_RO},
     {VV_NAME("t_blob",		 VAR_NUMBER), NULL, VV_RO},
+    {VV_NAME("t_class",		 VAR_NUMBER), NULL, VV_RO},
+    {VV_NAME("t_object",	 VAR_NUMBER), NULL, VV_RO},
     {VV_NAME("termrfgresp",	 VAR_STRING), NULL, VV_RO},
     {VV_NAME("termrbgresp",	 VAR_STRING), NULL, VV_RO},
     {VV_NAME("termu7resp",	 VAR_STRING), NULL, VV_RO},
@@ -255,6 +257,8 @@
     set_vim_var_nr(VV_TYPE_JOB,     VAR_TYPE_JOB);
     set_vim_var_nr(VV_TYPE_CHANNEL, VAR_TYPE_CHANNEL);
     set_vim_var_nr(VV_TYPE_BLOB,    VAR_TYPE_BLOB);
+    set_vim_var_nr(VV_TYPE_CLASS,   VAR_TYPE_CLASS);
+    set_vim_var_nr(VV_TYPE_OBJECT,  VAR_TYPE_OBJECT);
 
     set_vim_var_nr(VV_ECHOSPACE,    sc_col - 1);