[vm/aot] Make regexp/stack-overflow test pass This test needs a larger backtracking stack then we provide by default in AOT mode. Allow controlling stack size via a command line flag regexp_backtrack_stack_size_kb. Additionally cleanup types in the interpreter a bit: generated code uses Int32List for both register and backtracking stack. But the interpreter was using intptr_t for backtracking stack and int32_t for registers. Align these types to use int32_t everywhere and add a bit of sanity checking to ensure that we don't try to use regexp engine with strings which are too big to fit into int32_t range. TEST=corelib/regexp/stack-overflow Change-Id: I5c13c4b47d5d478b683f0450d3c0ce65f6961cff Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/338141 Commit-Queue: Slava Egorov <vegorov@google.com> Reviewed-by: Daco Harkes <dacoharkes@google.com>
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