RFR: 8353638: C2: deoptimization and re-execution cycle with StringBuilder

[Marc Chevalier]

Unlike what was assumed at first, it is quite different from [JDK-8346989](https://bugs.openjdk.org/browse/JDK-8346989). The problem is actually unrelated to `StringBuilder`, but has to do with the underlying array allocation. 

Here, the problem is that the array allocation function, that is throwing when given a negative length, causes a deopt rather than using the compiled exception handlers. This is an old workaround, and the flag `StressCompiledExceptionHandlers` to rather use compiled handlers instead of deopting was added in [JDK-8004741](https://bugs.openjdk.org/browse/JDK-8004741) in 2012. This flag is used in testing since october 2022.

So maybe it's time to use the compiled exception handlers! I propose to turn them on by default, and instead, add a diagnostic flag to deopt instead, in case something goes wrong. Doing so improve the performance to match the ones of C1 (both for direct array allocation, and `StringBuilder` construction). For instance, with the case given in the JBS issue:

Stop at level 0
CompileCommand: compileonly C.test* bool compileonly = true

real	0m4,277s
user	0m4,214s
sys	0m0,117s

Stop at level 1
CompileCommand: compileonly C.test* bool compileonly = true

real	0m4,104s
user	0m4,079s
sys	0m0,106s

Stop at level 2
CompileCommand: compileonly C.test* bool compileonly = true

real	0m4,308s
user	0m4,239s
sys	0m0,145s

Stop at level 3
CompileCommand: compileonly C.test* bool compileonly = true

real	0m4,304s
user	0m4,247s
sys	0m0,132s

Default (Stop at level 4)
CompileCommand: compileonly C.test* bool compileonly = true

real	0m4,086s
user	0m4,059s
sys	0m0,122s



I've run some tests (up to tier10), it seems all fine, ignoring the usual noise. I've checked with @dougxc, it shouldn't impact Graal as it doesn't use `OptoRuntime`.

-------------

Commit messages:
 - Change dev StressCompiledExceptionHandlers into diagnostic DeoptimizeOnAllocationException

Changes: https://git.openjdk.org/jdk/pull/25149/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25149&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8353638
  Stats: 5 lines in 2 files changed: 4 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25149.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25149/head:pull/25149

PR: https://git.openjdk.org/jdk/pull/25149