anchor.diff:          });
           builder.write(outerIndent);
           builder.write(')');
  -        builder.selectHere();
         });
       });
       _addAssistFromBuilder(changeBuilder, assistKind);
  
positive.code:         builder.write(eol);
          builder.write(indentOld);
          builder.write(']');
          builder.selectHere();
        });
      });
      _addAssistFromBuilder(changeBuilder, DartAssistKind.FLUTTER_WRAP_GENERIC);
  
negative.code:         builder.write(': ');
          builder.write(widgetSrc);
          builder.write(')');
        });
      });
      _addAssistFromBuilder(changeBuilder, kind);
  