Disables useWasmOSR on Linux x64 to work around a JavaScriptCore bug
that causes crashes (SIGILL/segfault) when calling Emscripten-exported
Wasm functions via direct method calls after many iterations.
The crash occurs specifically with direct method call patterns like
`module._func(arg)` vs working alternatives like `const fn = module._func; fn(arg)`.
This workaround trades some Wasm performance (no on-stack replacement
from interpreter to JIT) for stability. Wasm code still gets JIT-compiled
after enough executions via the normal tiering mechanism.
Fixes#26366Fixes#26444Fixes#17841
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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