Add discouraged feature for Function.prototype.caller and arguments

Related-to: web-platform-dx#2564 (comment)

Author: ddbeck

Diff for: features/functions-caller-arguments.yml

@@ -0,0 +1,9 @@
+name: Function caller and arguments
+description: The `caller` and `arguments` properties of a non-strict mode `Function` object return the function that called it and the arguments it was called with. Not to be confused with the `arguments` variable in a function body's local scope.
+group: javascript
+spec: https://tc39.es/ecma262/multipage/error-handling-and-language-extensions.html#sec-forbidden-extensions
+discouraged:
+  according_to: https://tc39.es/ecma262/multipage/error-handling-and-language-extensions.html#sec-forbidden-extensions
+compat_features:
+  - javascript.builtins.Function.arguments
+  - javascript.builtins.Function.caller

Diff for: features/functions-caller-arguments.yml.dist

@@ -0,0 +1,36 @@
+# Generated from: functions-caller-arguments.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "1"
+    chrome_android: "18"
+    edge: "12"
+    firefox: "1"
+    firefox_android: "4"
+    safari: "3"
+    safari_ios: "1"
+compat_features:
+  # baseline: false
+  # support:
+  #   chrome: "1"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "1"
+  #   firefox_android: "4"
+  #   safari: "1"
+  #   safari_ios: "1"
+  - javascript.builtins.Function.arguments
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   chrome: "1"
+  #   chrome_android: "18"
+  #   edge: "12"
+  #   firefox: "1"
+  #   firefox_android: "4"
+  #   safari: "3"
+  #   safari_ios: "1"
+  - javascript.builtins.Function.caller