[LLVMdev] 2.7 release notes

[Wesley Peck]

> Ok, the LLVM 2.7 release notes are in near final shape.  Please take a look and suggest improvements (or, better yet, just commit improvements if you have commit access):

I committed several typo fixes / rewording fixes to the release notes just now. The following paragraph under the "New Useful APIs" section needs to be reworded but I am not sure what is trying to be expressed so I have not done anything with it yet:

	The optimizer uses the new CodeMetrics class to measure the size of code. Various passes that use thing (like the inliner, loop unswitcher, etc) all use this to make more accurate estimates of the code size impact of various optimizations.

The "use thing" could just be reworded to "use things" but this still doesn't seem to clear. Perhaps just removing that section would be better (?) resulting in the following:

	The optimizer uses the new CodeMetrics class to measure the size of code. Various passes (like the inliner, loop unswitcher, etc) all use this to make more accurate estimates of the code size impact of various optimizations.

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Wesley Peck
University of Kansas
SLDG Laboratory