[wasm] Do not use setjmp/longjmp in cctests.

test/cctest/wasm/test-run-wasm-64.cc

Index: test/cctest/wasm/test-run-wasm-64.cc
diff --git a/test/cctest/wasm/test-run-wasm-64.cc b/test/cctest/wasm/test-run-wasm-64.cc
index 4571364980604d4ca126dcd762116b1bc7c3a582..884c5ef11f67c89e268d0a47174c6f12b0abe40f 100644
--- a/test/cctest/wasm/test-run-wasm-64.cc
+++ b/test/cctest/wasm/test-run-wasm-64.cc
@@ -1319,6 +1319,9 @@ WASM_EXEC_TEST(I64ReinterpretF64) {
   }
 }
 
+// Do not run this test in a simulator because of signalling NaN issues on ia32.
+#ifndef USE_SIMULATOR
+
 WASM_EXEC_TEST(SignallingNanSurvivesI64ReinterpretF64) {
   REQUIRE(I64ReinterpretF64);
   WasmRunner<int64_t> r(execution_mode);
@@ -1328,6 +1331,7 @@ WASM_EXEC_TEST(SignallingNanSurvivesI64ReinterpretF64) {
   // This is a signalling nan.
   CHECK_EQ(0x7ff4000000000000, r.Call());
 }
+#endif
 
 WASM_EXEC_TEST(F64ReinterpretI64) {
   REQUIRE(F64ReinterpretI64);