[improve livetests] Decrease accepted error rate to 1% for validity check

The testWasmCodeGenerationAndCompilation() LiveTest failed only once in
10 executions where an execution consists of 250 runs. (A run consists
of generating a random Wasm module and compiling it.)
Before this change we expected a max of 10% of Wasm compilations to fail
which was way too high.

Change-Id: Ic190b9da5d706b982a7590676fb20e856b1cb053
Reviewed-on: https://chrome-internal-review.googlesource.com/c/v8/fuzzilli/+/7960390
Reviewed-by: Carl Smith <[email protected]>
Commit-Queue: Eva Herencsárová <[email protected]>

Author: evicy

Tests/FuzzilliTests/LiveTests.swift

@@ -58,8 +58,8 @@ class LiveTests: XCTestCase {
             }
         }
 
-        // We expect a maximum of 10% of Wasm compilation attempts to fail
-        checkFailureRate(testResults: results, maxFailureRate: 0.10)
+        // We expect a maximum of 1% of Wasm compilation attempts to fail.
+        checkFailureRate(testResults: results, maxFailureRate: 0.01)
     }
 
     func testWasmCodeGenerationAndCompilationAndExecution() throws {