getPositionGroup(fIdentifierName).addPosition(astRewrite.track(node));
positionGroups.getPositionGroup(fIdentifierName, true).addPosition(astRewrite.track(node), false);
				private boolean replace(final Expression expression) {					final SimpleName node= ast.newSimpleName(text);					astRewrite.replace(expression, node, group);					remover.registerRemovedNode(expression);					getPositionGroup(fIdentifierName).addPosition(astRewrite.track(node));					return false;				}