Ensure literals are excluded from parent props.

Fixes #3128. Fixes #3121.

src/standard/annotations.html

@@ -130,8 +130,8 @@ TODO(sjmiles): this module should produce either syntactic metadata
           this._notes = this._template._content._notes;
         }  else {
           this._notes = Polymer.Annotations.parseAnnotations(this._template);
+          this._processAnnotations(this._notes);
         }
-        this._processAnnotations(this._notes);
         Polymer.Annotations.prepElement = null;
       }
     },
@@ -188,10 +188,15 @@ TODO(sjmiles): this module should produce either syntactic metadata
             if (p.signature) {
               var args = p.signature.args;
               for (var kk=0; kk<args.length; kk++) {
-                pp[args[kk].model] = true;
+                var model = args[kk].model;
+                if (model) {
+                  pp[model] = true;
+                }
               }
             } else {
-              pp[p.model] = true;
+              if (p.model) {
+                pp[p.model] = true;
+              }
             }
           }
         }

src/standard/effectBuilder.html

@@ -222,8 +222,7 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
         ;
       // basic argument descriptor
       var a = {
-        name: arg,
-        model: this._modelForPath(arg)
+        name: arg
       };
       // detect literal value (must be String or Number)
       var fc = arg[0];
@@ -246,6 +245,7 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
       }
       // if not literal, look for structured path
       if (!a.literal) {
+        a.model = this._modelForPath(arg);
         // detect structured path (has dots)
         a.structured = arg.indexOf('.') > 0;
         if (a.structured) {

test/unit/templatizer-elements.html

@@ -11,6 +11,7 @@
           obj="{{obj}}"
           obj-prop="{{obj.prop}}"
           conflict="{{outerInnerConflict.prop}}"
+          computed-from-literal="{{computeFromLiteral(33, prop)}}"
         ></x-child>
       </template>
     </x-templatizer>
@@ -238,7 +239,8 @@
     ],
     outerObjChanged: function() {},
     objAChanged: function() {},
-    objBChanged: function() {}
+    objBChanged: function() {},
+    computeFromLiteral: function() {}
   });
 
 </script>

test/unit/templatizer.html

@@ -250,6 +250,11 @@ subject to an additional IP rights grant found at http://polymer.github.io/PATEN
       assert.equal(childA.conflict, 'bar');
     });
 
+    test('ensure literals are not forwarded to templates', function() {
+      assert.notOk(host._propertyEffects[33]);
+      assert.notOk(Object.getOwnPropertyDescriptor(Object.getPrototypeOf(host), 33));
+    });
+
   });
 
 </script>