Fix compiler issues revealed by increased intersection correctness

Author: ahejlsberg

src/compiler/factory.ts

@@ -1795,9 +1795,7 @@ namespace ts {
 
         const target = getTargetOfBindingOrAssignmentElement(bindingElement);
         if (target && isPropertyName(target)) {
-            return isComputedPropertyName(target) && isStringOrNumericLiteral(target.expression)
-                ? target.expression
-                : target;
+            return target;
         }
     }
 

src/compiler/transformers/classFields.ts

@@ -976,7 +976,7 @@ namespace ts {
             );
         }
 
-        function visitArrayAssignmentTarget(node: AssignmentPattern) {
+        function visitArrayAssignmentTarget(node: BindingOrAssignmentElement) {
             const target = getTargetOfBindingOrAssignmentElement(node);
             if (target && isPrivateIdentifierPropertyAccessExpression(target)) {
                 const wrapped = wrapPrivateIdentifierForDestructuringTarget(target);