summarize JITted method size

[bitfaster]

Also generate a method size summary, with stable order that can be diffed.

E.g.

#	Method	Size (bytes)
0	BitFaster.Caching.Benchmarks.Lru.LruCycleBench.ConcurrentLruEvent	175
1	BitFaster.Caching.Benchmarks.Lru.LruCycleBench+<>c.b__11_0(Int32	3
2	BitFaster.Caching.Lru.TemplateConcurrentLru5[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib],[BitFaster.Caching.Lru.LruPolicy2[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib]], BitFaster.Caching],[BitFaster.Caching.Lru.HitCounter`2[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib]], BitFaster.Caching]].Cycle	905
3	BitFaster.Caching.Lru.TemplateConcurrentLru5[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib],[BitFaster.Caching.Lru.LruPolicy2[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib]], BitFaster.Caching],[BitFaster.Caching.Lru.HitCounter2[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib]], BitFaster.Caching]].GetOrAdd(Int32, System.Func2<Int32,Int32>	306
4	BitFaster.Caching.Lru.TemplateConcurrentLru5[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib],[BitFaster.Caching.Lru.LruPolicy2[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib]], BitFaster.Caching],[BitFaster.Caching.Lru.HitCounter`2[[System.Int32, System.Private.CoreLib],[System.Int32, System.Private.CoreLib]], BitFaster.Caching]].Move(System.__Canon, BitFaster.Caching.Lru.ItemDestination	508
5	System.Collections.Concurrent.ConcurrentDictionary`2[[System.Int32, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].GrowTable(Tables<Int32,System.__Canon>	1229
6	System.Collections.Concurrent.ConcurrentDictionary2[[System.Int32, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].TryAddInternal(Int32, System.Nullable1, System.__Canon, Boolean, Boolean, System.__Canon ByRef	1039
7	System.Collections.Concurrent.ConcurrentDictionary`2[[System.Int32, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].TryGetValue(Int32, System.__Canon ByRef	259
8	System.Collections.Concurrent.ConcurrentDictionary`2+Tables[[System.__Canon, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].GetBucketAndLock(Int32, UInt32 ByRef	97
9	System.Collections.Concurrent.ConcurrentDictionary`2+Tables[[System.Int32, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].GetBucket(Int32	109
10	System.Collections.Concurrent.ConcurrentDictionary`2+Tables[[System.Int32, System.Private.CoreLib],[System.__Canon, System.Private.CoreLib]].GetBucketAndLock(Int32, UInt32 ByRef	123
11	System.Collections.Concurrent.ConcurrentQueueSegment`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef	270
12	System.Collections.Concurrent.ConcurrentQueueSegment`1[[System.__Canon, System.Private.CoreLib]].TryEnqueue(System.__Canon	125