Bug 1631288 - Support %TypedArray%.from and %TypedArray%.of in eager evaluation. r=nchevobbe

Differential Revision: https://phabricator.services.mozilla.com/D71667

devtools/client/webconsole/test/browser/browser_jsterm_eager_evaluation.js

@@ -224,6 +224,12 @@ add_task(async function() {
   setInputValue(hud, "[] instanceof Array");
   await waitForEagerEvaluationResult(hud, "true");
 
+  setInputValue(hud, "Int8Array.from({length: 1})[0]");
+  await waitForEagerEvaluationResult(hud, "0");
+
+  setInputValue(hud, "Float64Array.of(1)[0]");
+  await waitForEagerEvaluationResult(hud, "1");
+
   // go back to inline layout.
   await toggleLayout(hud);
 });

devtools/server/actors/webconsole/eager-ecma-whitelist.js

@@ -16,6 +16,8 @@ function allProperties(obj) {
   return matchingProperties(obj, /./);
 }
 
+const TypedArray = Reflect.getPrototypeOf(Int8Array);
+
 module.exports = [
   Array,
   Array.from,
@@ -70,25 +72,26 @@ module.exports = [
   Uint32Array,
   Float32Array,
   Float64Array,
-  // These will apply to other typed array prototypes.
-  Int8Array.prototype.entries,
-  Int8Array.prototype.every,
-  Int8Array.prototype.filter,
-  Int8Array.prototype.find,
-  Int8Array.prototype.findIndex,
-  Int8Array.prototype.forEach,
-  Int8Array.prototype.indexOf,
-  Int8Array.prototype.includes,
-  Int8Array.prototype.join,
-  Int8Array.prototype.keys,
-  Int8Array.prototype.lastIndexOf,
-  Int8Array.prototype.map,
-  Int8Array.prototype.reduce,
-  Int8Array.prototype.reduceRight,
-  Int8Array.prototype.slice,
-  Int8Array.prototype.some,
-  Int8Array.prototype.subarray,
-  Int8Array.prototype.values,
+  TypedArray.from,
+  TypedArray.of,
+  TypedArray.prototype.entries,
+  TypedArray.prototype.every,
+  TypedArray.prototype.filter,
+  TypedArray.prototype.find,
+  TypedArray.prototype.findIndex,
+  TypedArray.prototype.forEach,
+  TypedArray.prototype.includes,
+  TypedArray.prototype.indexOf,
+  TypedArray.prototype.join,
+  TypedArray.prototype.keys,
+  TypedArray.prototype.lastIndexOf,
+  TypedArray.prototype.map,
+  TypedArray.prototype.reduce,
+  TypedArray.prototype.reduceRight,
+  TypedArray.prototype.slice,
+  TypedArray.prototype.some,
+  TypedArray.prototype.subarray,
+  TypedArray.prototype.values,
   ...allProperties(JSON),
   Map,
   Map.prototype.forEach,