Editorial: Move an <emu-note> element

PR tc39#1490 (among other things) moved the evaluation semantics for ArrowFunction
from the Evaluation SDO to the NamedEvaluation SDO.
The accompanying <emu-note> should have moved at the same time
(in particular because of the reference to "step 3").

Author: jmdyck

spec.html

@@ -20113,6 +20113,9 @@ <h1>Runtime Semantics: NamedEvaluation</h1>
         1. Set _closure_.[[SourceText]] to the source text matched by |ArrowFunction|.
         1. Return _closure_.
       </emu-alg>
+      <emu-note>
+        <p>An |ArrowFunction| does not define local bindings for `arguments`, `super`, `this`, or `new.target`. Any reference to `arguments`, `super`, `this`, or `new.target` within an |ArrowFunction| must resolve to a binding in a lexically enclosing environment. Typically this will be the Function Environment of an immediately enclosing function. Even though an |ArrowFunction| may contain references to `super`, the function object created in step 3 is not made into a method by performing MakeMethod. An |ArrowFunction| that references `super` is always contained within a non-|ArrowFunction| and the necessary state to implement `super` is accessible via the _scope_ that is captured by the function object of the |ArrowFunction|.</p>
+      </emu-note>
     </emu-clause>
 
     <emu-clause id="sec-arrow-function-definitions-runtime-semantics-evaluation">
@@ -20121,9 +20124,6 @@ <h1>Runtime Semantics: Evaluation</h1>
       <emu-alg>
         1. Return the result of performing NamedEvaluation for this |ArrowFunction| with argument *""*.
       </emu-alg>
-      <emu-note>
-        <p>An |ArrowFunction| does not define local bindings for `arguments`, `super`, `this`, or `new.target`. Any reference to `arguments`, `super`, `this`, or `new.target` within an |ArrowFunction| must resolve to a binding in a lexically enclosing environment. Typically this will be the Function Environment of an immediately enclosing function. Even though an |ArrowFunction| may contain references to `super`, the function object created in step 3 is not made into a method by performing MakeMethod. An |ArrowFunction| that references `super` is always contained within a non-|ArrowFunction| and the necessary state to implement `super` is accessible via the _scope_ that is captured by the function object of the |ArrowFunction|.</p>
-      </emu-note>
       <emu-grammar>ExpressionBody : AssignmentExpression</emu-grammar>
       <emu-alg>
         1. Let _exprRef_ be the result of evaluating |AssignmentExpression|.