fix: Check range when set module scope member

[ZhiruiLi]

Record module range when saving current module, and check if doclet in
range when call setModuleScopeMemberOf function.

Q	A
Bug fix?	yes
New feature?	no
Breaking change?	no
Deprecations?	yes
Tests added?	no
Fixed issues	list below
License	Apache-2.0

When walking through AST, vistor will treat the enum as module, which will cause wrong full name for the next element.
For example:

/*eslint-disable block-scoped-var, id-length, no-control-regex, no-magic-numbers, no-prototype-builtins, no-redeclare, no-shadow, no-var, sort-vars*/
"use strict";

var $protobuf = require("protobufjs/minimal");

// Exported root namespace
var $root = $protobuf.roots["default"] || ($protobuf.roots["default"] = {});

/**
 * MyEnum enum.
 * @exports MyEnum
 * @enum {number}
 * @property {number} UNKNOWN=0 UNKNOWN value
 */
$root.MyEnum = (function () {
  var valuesById = {},
    values = Object.create(valuesById);
  values[(valuesById[0] = "UNKNOWN")] = 0;
  return values;
})();

$root.MyMessage2 = (function () {
  /**
   * Properties of a MyMessage2.
   * @exports IMyMessage2
   * @interface IMyMessage2
   */

  /**
   * Constructs a new MyMessage2.
   * @exports MyMessage2
   * @classdesc Represents a MyMessage2.
   * @implements IMyMessage2
   * @constructor
   * @param {IMyMessage2=} [properties] Properties to set
   */
  function MyMessage2(properties) {
    if (properties)
      for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
        if (properties[keys[i]] != null) this[keys[i]] = properties[keys[i]];
  }

  return MyMessage2;
})();

module.exports = $root;

After visit MyEnum, the currentModule will become module:MyEnum, and the longname of IMyMessage2 will become module:MyEnum~IMyMessage2 even if it does not belong to MyEnum.

Here, we need to check if current element is out of current module, if it is, the branch should not be executed.