Replace _compoundInitializationEffect with statically-initialized literals in the template for attributes & textContent, and by configuring literal values of properties in _configureAnnotationReferences.

test/unit/bind-elements.html

@@ -24,13 +24,15 @@
       computed-from-tricky-literals2='{{computeFromTrickyLiterals(3,"tricky\,'zot'" )}}'
       computed-from-no-args="{{computeFromNoArgs( )}}"
       no-computed="{{foobared(noInlineComputed)}}"
-      compound1="{{cpnd1}}{{ cpnd2 }}{{cpnd3.prop}}{{ computeCompound(cpnd4, cpnd5, 'literal')}}"
-      compound2="literal1 {{cpnd1}} literal2 {{cpnd2}}{{cpnd3.prop}} literal3 {{computeCompound(cpnd4, cpnd5, 'literal')}} literal4"
       compoundAttr1$="{{cpnd1}}{{ cpnd2 }}{{cpnd3.prop}}{{ computeCompound(cpnd4, cpnd5, 'literal')}}"
       compoundAttr2$="literal1 {{cpnd1}} literal2 {{cpnd2}}{{cpnd3.prop}} literal3 {{computeCompound(cpnd4, cpnd5, 'literal')}} literal4"
       >
       Test
       </div>
+      <x-prop id="boundProps"
+        prop1="{{cpnd1}}{{ cpnd2 }}{{cpnd3.prop}}{{ computeCompound(cpnd4, cpnd5, 'literal')}}"
+        prop2="literal1 {{cpnd1}} literal2 {{cpnd2}}{{cpnd3.prop}} literal3 {{computeCompound(cpnd4, cpnd5, 'literal')}} literal4"
+      ></x-prop>
       <span id="boundText">{{text}}</span>
       <span idtest id="{{boundId}}"></span>
       <s id="computedContent">{{computeFromTrickyLiterals(3, 'tricky\,\'zot\'')}}</s>
@@ -364,6 +366,26 @@
   });
 </script>
 
+<script>
+  Polymer({
+    is: 'x-prop',
+    properties: {
+      prop1: {
+        value: 'default',
+        observer: 'prop1Changed'
+      },
+      prop2: {
+        value: 'default',
+        observer: 'prop2Changed'
+      }
+    },
+    created: function() {
+      this.prop1Changed = sinon.spy();
+      this.prop2Changed = sinon.spy();
+    }
+  });
+</script>
+
 <script>
   Polymer({
     is: 'x-notifies1',