Allow arguments before and after block-formatted functions.

lib/src/source_visitor.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library dart_style.src.source_visitor;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/source.dart';
 
@@ skipping 1658 matching lines @@
   void _visitCollectionLiteral(TypedLiteral node, Token leftBracket,
       Iterable<AstNode> elements, Token rightBracket,
       [int cost]) {
     modifier(node.constKeyword);
     visit(node.typeArguments);
 
     // Don't allow splitting in an empty collection.
     if (elements.isEmpty && rightBracket.precedingComments == null) {
       token(leftBracket);
       token(rightBracket);
+
+      // Clear this out in case this empty collection is in an argument list.
+      // We don't want this rule to bleed over to some other collection.
+      _nextLiteralBodyRule = null;
       return;
     }
 
     // Force all of the surrounding collections to split.
     for (var i = 0; i < _collectionSplits.length; i++) {
       _collectionSplits[i] = true;
     }
 
     // Add this collection to the stack.
     _collectionSplits.add(false);
@@ skipping 468 matching lines @@
   /// Gets the 1-based line number that the beginning of [token] lies on.
   int _startLine(Token token) => _lineInfo.getLocation(token.offset).lineNumber;
 
   /// Gets the 1-based line number that the end of [token] lies on.
   int _endLine(Token token) => _lineInfo.getLocation(token.end).lineNumber;
 
   /// Gets the 1-based column number that the beginning of [token] lies on.
   int _startColumn(Token token) =>
       _lineInfo.getLocation(token.offset).columnNumber;
 }