patch 8.2.1846: Vim9: block variables are not found in compiled function

Problem:    Vim9: variables declared in a local block are not found in
            when a function is compiled.
Solution:   Look for script variables in sn_all_vars.
diff --git a/src/vim9execute.c b/src/vim9execute.c
index 015777e..5c6dbdf 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -2962,8 +2962,10 @@
 		    svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data)
 					     + iptr->isn_arg.script.script_idx;
 
-		    smsg("%4d LOADSCRIPT %s from %s", current,
-						     sv->sv_name, si->sn_name);
+		    smsg("%4d LOADSCRIPT %s-%d from %s", current,
+					    sv->sv_name,
+					    iptr->isn_arg.script.script_idx,
+					    si->sn_name);
 		}
 		break;
 	    case ISN_LOADS:
@@ -3054,8 +3056,10 @@
 		    svar_T *sv = ((svar_T *)si->sn_var_vals.ga_data)
 					     + iptr->isn_arg.script.script_idx;
 
-		    smsg("%4d STORESCRIPT %s in %s", current,
-						     sv->sv_name, si->sn_name);
+		    smsg("%4d STORESCRIPT %s-%d in %s", current,
+					     sv->sv_name,
+					     iptr->isn_arg.script.script_idx,
+					     si->sn_name);
 		}
 		break;
 	    case ISN_STOREOPT: