Update rustfmt for ast::ExprKind::MethodCall changes

Author: petrochenkov

src/chains.rs

@@ -437,13 +437,22 @@ fn rewrite_method_call_with_overflow(
  context: &RewriteContext,
  shape: Shape,
 ) -> bool {
- if let &ast::ExprKind::MethodCall(ref method_name, ref types, ref expressions) = expr_kind {
+ if let &ast::ExprKind::MethodCall(ref segment, ref expressions) = expr_kind {
  let shape = match shape.shrink_left(almost_total) {
  Some(b) => b,
  None => return false,
  };
+ let types = match segment.parameters {
+ Some(ref params) => {
+ match **params {
+ ast::PathParameters::AngleBracketed(ref data) => &data.types[..],
+ _ => &[],
+ }
+ }
+ _ => &[],
+ };
  let mut last_rewrite = rewrite_method_call(
- method_name.node,
+ segment.identifier,
  types,
  expressions,
  total_span,
@@ -466,7 +475,7 @@ fn rewrite_method_call_with_overflow(
 // is a try! macro, we'll convert it to shorthand when the option is set.
 fn pop_expr_chain(expr: &ast::Expr, context: &RewriteContext) -> Option<ast::Expr> {
  match expr.node {
- ast::ExprKind::MethodCall(_, _, ref expressions) => {
+ ast::ExprKind::MethodCall(_, ref expressions) => {
  Some(convert_try(&expressions[0], context))
  }
  ast::ExprKind::TupField(ref subexpr, _) |
@@ -504,8 +513,17 @@ fn rewrite_chain_subexpr(
  };
 
  match expr.node {
- ast::ExprKind::MethodCall(ref method_name, ref types, ref expressions) => {
- rewrite_method_call(method_name.node, types, expressions, span, context, shape)
+ ast::ExprKind::MethodCall(ref segment, ref expressions) => {
+ let types = match segment.parameters {
+ Some(ref params) => {
+ match **params {
+ ast::PathParameters::AngleBracketed(ref data) => &data.types[..],
+ _ => &[],
+ }
+ }
+ _ => &[],
+ };
+ rewrite_method_call(segment.identifier, types, expressions, span, context, shape)
  }
  ast::ExprKind::Field(_, ref field) => rewrite_element(format!(".{}", field.node)),
  ast::ExprKind::TupField(ref expr, ref field) => {