[clang] [clang][analyzer] Enable loop unrolling by default (PR #178911)

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@@ -103,7 +103,7 @@ ANALYZER_OPTION(
 ANALYZER_OPTION(bool, ShouldIncludeLoopExitInCFG, "cfg-loopexit",
                 "Whether or not the end of the loop information should "
                 "be included in the CFG.",
-                false)
+                true)
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gamesh411 wrote:

I'll split the PR to first only handle the `cfg-loopexit` one.
Should I just close this PR and make 2 PRs, or massage the current one into something that clearly has a boundary between the first section (`cfg-loopexit` and its tests) and the rest @steakhal ?

https://github.com/llvm/llvm-project/pull/178911