JSDoc `@template` type parameters aren't resolved on prototype assignments

[sandersn]

/**
 * @constructor
 * @template K, V
 */
var Multimap = function() {
  /** @type {!Map.<K, !Set.<!V>>} */
  this._map = new Map();
};

Multimap.prototype = {
  /**
   * @param {K} key // <------ error here, 'K' not found
   * @param {V} value // <---- and here
   */
  set: function(key, value) {
    var set = this._map.get(key);
    if (!set) {
      set = new Set();
      this._map.set(key, set);
    }
    set.add(value);
  }
}

Expected behavior:
K and V are resolved to the declaration on var Multimap = function ....

Actual behavior:
Cannot find name 'K'. and Cannot find name 'V'.

The js-specific code in resolveEntityName needs to understand prototype assignment the same way that it does prototype property assignment. This works fine:

/**
 * @param {K} key // <------ error here, 'K' not found
 * @param {V} value // <---- and here
 */
Multimap.prototype.set = function {
}

[sandersn]

Note: This does not work fine, given the current example:

/**
 * @param {K} key // <------ error here, 'K' not found
 * @param {V} value // <---- and here
 */
Multimap.prototype.set = function {
}

It only works if Multimap is declared as function Multimap ... instead of var Multimap = function ....