[Mono-devel-list] Patch to speed up String

[Andreas Nahr]

Hi,

after some time I try again...
Here is the first patch to speed up the String class by making it managed 
where possible.

Please somebody test so that I can commit...

Here are some benchmark results for the exchanged methods (the nuber in () 
is the number of chars tested with)
All tests run with optimized=all
CopyTo (000): 810 -> 381
CopyTo (010): 832 -> 441
CopyTo (100): 1352 -> 881
CopyTo (512): 3395 -> 3014

ToCharArray (000): 5067 -> 4466
ToCharArray (002): 5317 -> 4857
ToCharArray (015): 8041 -> 7691
ToCharArray (960): 2915 -> 2894
ToCharArray (with parameters): Similar to above

Andreas 
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