[v8] Add flag --wasm-random-rescheduling

Other fuzzers have a head-start already with crrev.com/c/7939890
(and are already reporting issues.)

Bug: 458409082
Change-Id: If1fc65fc34c5325b5535a9bf8a08fe4e432203ba
Reviewed-on: https://chrome-internal-review.googlesource.com/c/v8/fuzzilli/+/9419314
Auto-Submit: Matthias Liedtke <mliedtke@google.com>
Commit-Queue: Matthias Liedtke <mliedtke@google.com>
Reviewed-by: Michael Achenbach <machenbach@google.com>
Commit-Queue: Michael Achenbach <machenbach@google.com>

Author: Liedtke

Sources/Fuzzilli/Profiles/V8CommonProfile.swift

@@ -1205,6 +1205,10 @@ public func v8ProcessArgs(randomize: Bool, forSandbox: Bool) -> [String] {
         args.append("--wasm-caching-threshold=\(Int.random(in: 1...1000))")
     }
 
+    if probability(0.2) {
+        args.append("--wasm-random-rescheduling")
+    }
+
     // Disabling batching allows the fuzzer to reach higher JIT tiers faster; sometimes test the
     // production configuration too.
     if probability(0.8) {