Parameter rename does not work in lambda expression when the type is not explicitly set.

Steps to reproduce:
1) have a code:
        Iface i1 = (String a/*0*/)-> {return a+"";};
	Iface i2 = a/*1*/-> {return a/*2*/+"";};

2) put cursor at position /*1*/

-> ctrl-R does nothing

3) put cursor at position /*2*/
-> ctrl-R renames 'a' at position /*0*/
(note that mark occurrences are also invalid)


Product Version: NetBeans IDE Dev (Build 201402040001)
Java: 1.8.0-ea; Java HotSpot(TM) 64-Bit Server VM 25.0-b65
Runtime: Java(TM) SE Runtime Environment 1.8.0-ea-b123
System: Windows 7 version 6.1 running on amd64; Cp1250; en_US (nb)
User directory: C:\Users\jprox\AppData\Roaming\NetBeans\dev
Cache directory: C:\Users\jprox\AppData\Local\NetBeans\Cache\dev