Basic conformance to TC39 decorator proposal

Author: limzykenneth

src/core/friendly_errors/param_validator.js

@@ -570,11 +570,11 @@ function validateParams(p5, fn, lifecycles) {
     }
   };
 
-  fn._validate = validate; // For unit tests
+  fn._validate = validate; // TEMP: For unit tests
 
   p5.decorateHelper(
     /^(?!_).+$/,
-    function(target, name){
+    function(target, { name }){
       return function(...args){
         if (!p5.disableFriendlyErrors && !p5.disableParameterValidator) {
           validate(name, args);

src/core/main.js

@@ -761,7 +761,14 @@ const p5Proxy = new Proxy(p5, {
             }
           })) continue;
 
-          p5.prototype[member] = decoration(p5.prototype[member], member);
+          p5.prototype[member] = decoration(p5.prototype[member], {
+            kind: 'method',
+            name: member,
+            access: {},
+            static: false,
+            private: false,
+            addInitializer(initializer){}
+          });
         }
       }