Detect error when a prefix of a valid node name is used in a query

lib/binding_web/test/query-test.js

@@ -25,6 +25,9 @@ describe("Query", () => {
     assert.throws(() => {
       JavaScript.query("(non_existent)")
     }, "Bad node name 'non_existent'");
+    assert.throws(() => {
+      JavaScript.query("(a)")
+    }, "Bad node name 'a'");
     assert.throws(() => {
       JavaScript.query("(function_declaration non_existent:(identifier))")
     }, "Bad field name 'non_existent'");