test/com/google/javascript/jscomp/TypeCheckTest.java
// the invalid type of the interface member.
the invalid type of the interface member.
the invalid type of the interface member .
@Test
  @Ignore
  public void testWarnDataPropertyOnInterface1() {
    testTypes(
        "/** @interface */ u.T = function() {};\n" + "/** @type {number} */u.T.prototype.x;",
        "interface members can only be plain functions");
  }
@ Test @ Ignore public void testWarnDataPropertyOnInterface1 ( ) { testTypes ( "/** @interface */ u.T = function() {};\n" + "/** @type {number} */u.T.prototype.x;" , "interface members can only be plain functions" ) ; }
the invalid type of the interface member.
the invalid type of the interface member .