[rtsan] Add option to allow printing of duplicate stacks (suppress_equal_stacks) (#117069)

Following the example of tsan, where we took the name

This would allow users to determine if they want t

[rtsan] Add option to allow printing of duplicate stacks (suppress_equal_stacks) (#117069)

Following the example of tsan, where we took the name

This would allow users to determine if they want to see ALL output from
rtsan.

Additionally, remove the UNLIKELY hint, as it is now up to the flag whether or
not it is likely that we go through this conditional.

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[rtsan] Only print out unique stack traces (#110028)

# Why?

In real-time programming, you often have a process or dispatch loop that
is called many, many, many times. Without de-duplication the

[rtsan] Only print out unique stack traces (#110028)

# Why?

In real-time programming, you often have a process or dispatch loop that
is called many, many, many times. Without de-duplication the user will
be drowning in errors.

Introduce a way to only print the stacks one time only, if they have
been seen before

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