Add wasm binding for running tree queries in a limited range

lib/src/language.c

@@ -96,7 +96,8 @@ TSFieldId ts_language_field_id_for_name(
   for (TSSymbol i = 1; i < count + 1; i++) {
     switch (strncmp(name, self->field_names[i], name_length)) {
       case 0:
-        return i;
+        if (self->field_names[i][name_length] == 0) return i;
+        break;
       case -1:
         return 0;
       default:

lib/src/query.c

@@ -783,6 +783,7 @@ bool ts_query_cursor_next(TSQueryCursor *self) {
           .step_index = slice->step_index,
           .pattern_index = slice->pattern_index,
           .capture_list_id = capture_list_id,
+          .capture_count = 0,
         }));
       }