Merge pull request #1715 from test262-automation/javascriptcore-test262-automation-export-5594c916b

Import test changes from JavaScriptCore

implementation-contributed/curation_logs/javascriptcore.json

@@ -1,6 +1,6 @@
 {
-  "sourceRevisionAtLastExport": "a2f7b0c562",
+  "sourceRevisionAtLastExport": "873fa026de",
-  "targetRevisionAtLastExport": "5594c916b",
+  "targetRevisionAtLastExport": "92b6974df",
   "curatedFiles": {
     "/stress/Number-isNaN-basics.js": "DELETED_IN_TARGET",
     "/stress/Object_static_methods_Object.getOwnPropertyDescriptors-proxy.js": "DELETED_IN_TARGET",

implementation-contributed/javascriptcore/stress/math-pow-nan-to-zero-spec-type.js

@@ -0,0 +1,21 @@
+// Verify that we have the correct speculation checks for Math.pow(NaN, 0).
+
+function func(x) {
+    return fiatInt52(Math.pow(NaN, (x > 1)));
+};
+
+noInline(func);
+
+function test(f)
+{
+    for (let i = 0; i < 10000; ++i) {
+        if (f(0) != 1)
+            throw "Wrong expected value";
+
+        if (f(1) != 1)
+            throw "Wrong expected value";
+    }
+}
+
+test(func);
+

implementation-contributed/javascriptcore/wasm/regress/regress-189185.js

@@ -1,5 +1,4 @@
-//@ skip if $architecture == "x86"
+//@ runWebAssembly
-//@ runDefault
 // This passes if it does not crash.
 new WebAssembly.CompileError({
     valueOf() {