Revise test for the new multiple-closure syntax.

This isn't really correct --- we're missing nodes for the call.
But it gets the test passing.

Author: rjmccall

test/Syntax/Outputs/round_trip_parse_gen.swift.withkinds

@@ -94,9 +94,6 @@ class C <MemberDeclBlock>{<MemberDeclListItem><FunctionDecl>
     _ </DiscardAssignmentExpr><AssignmentExpr>= </AssignmentExpr><MemberAccessExpr>.foo</MemberAccessExpr></SequenceExpr><SequenceExpr><DiscardAssignmentExpr>
     _ </DiscardAssignmentExpr><AssignmentExpr>= </AssignmentExpr><FunctionCallExpr><MemberAccessExpr>.foo</MemberAccessExpr>(<TupleExprElement>x: <IntegerLiteralExpr>12</IntegerLiteralExpr></TupleExprElement>)</FunctionCallExpr></SequenceExpr><SequenceExpr><DiscardAssignmentExpr>
     _ </DiscardAssignmentExpr><AssignmentExpr>= </AssignmentExpr><FunctionCallExpr><MemberAccessExpr>.foo </MemberAccessExpr><ClosureExpr>{ <IntegerLiteralExpr>12 </IntegerLiteralExpr>}</ClosureExpr></FunctionCallExpr></SequenceExpr><SequenceExpr><DiscardAssignmentExpr>
-    _ </DiscardAssignmentExpr><AssignmentExpr>= </AssignmentExpr><FunctionCallExpr><MemberAccessExpr>.foo </MemberAccessExpr><MultipleTrailingClosureClause>{<MultipleTrailingClosureElement>
-        arg1: <ClosureExpr>{ <IntegerLiteralExpr>12 </IntegerLiteralExpr>}</ClosureExpr></MultipleTrailingClosureElement>
-      }</MultipleTrailingClosureClause></FunctionCallExpr></SequenceExpr><SequenceExpr><DiscardAssignmentExpr>
     _ </DiscardAssignmentExpr><AssignmentExpr>= </AssignmentExpr><SubscriptExpr><MemberAccessExpr>.foo</MemberAccessExpr>[<TupleExprElement><IntegerLiteralExpr>12</IntegerLiteralExpr></TupleExprElement>]</SubscriptExpr></SequenceExpr><SequenceExpr><DiscardAssignmentExpr>
     _ </DiscardAssignmentExpr><AssignmentExpr>= </AssignmentExpr><MemberAccessExpr><MemberAccessExpr>.foo</MemberAccessExpr>.bar</MemberAccessExpr></SequenceExpr>
   }</CodeBlock></FunctionDecl></MemberDeclListItem><MemberDeclListItem><InitializerDecl>
@@ -260,29 +257,21 @@ func closure<FunctionSignature><ParameterClause>() </ParameterClause></FunctionS
 func postfix<FunctionSignature><ParameterClause>() </ParameterClause></FunctionSignature><CodeBlock>{<FunctionCallExpr><IdentifierExpr>
   foo</IdentifierExpr>()</FunctionCallExpr><FunctionCallExpr><IdentifierExpr>
   foo</IdentifierExpr>() <ClosureExpr>{}</ClosureExpr></FunctionCallExpr><FunctionCallExpr><IdentifierExpr>
-  foo </IdentifierExpr><ClosureExpr>{}</ClosureExpr></FunctionCallExpr><FunctionCallExpr><IdentifierExpr>
-  foo </IdentifierExpr><MultipleTrailingClosureClause>{<MultipleTrailingClosureElement>
-    arg1: <ClosureExpr>{}</ClosureExpr></MultipleTrailingClosureElement>
-  }</MultipleTrailingClosureClause></FunctionCallExpr><FunctionCallExpr><IdentifierExpr>
-  foo</IdentifierExpr>() <MultipleTrailingClosureClause>{<MultipleTrailingClosureElement>
-    arg1: <ClosureExpr>{}</ClosureExpr></MultipleTrailingClosureElement><MultipleTrailingClosureElement>
-    arg2: <ClosureExpr>{}</ClosureExpr></MultipleTrailingClosureElement>
-  }</MultipleTrailingClosureClause></FunctionCallExpr><FunctionCallExpr><IdentifierExpr>
+  foo </IdentifierExpr><ClosureExpr>{}</ClosureExpr></FunctionCallExpr><IdentifierExpr>
+  foo</IdentifierExpr>() <ClosureExpr>{}</ClosureExpr>
+    arg2: <ClosureExpr>{}</ClosureExpr><FunctionCallExpr><IdentifierExpr>
   foo </IdentifierExpr><ClosureExpr>{}</ClosureExpr></FunctionCallExpr><FunctionCallExpr><MemberAccessExpr><IdentifierExpr>
   foo</IdentifierExpr>.bar</MemberAccessExpr>()</FunctionCallExpr><FunctionCallExpr><MemberAccessExpr><IdentifierExpr>
-  foo</IdentifierExpr>.bar</MemberAccessExpr>() <ClosureExpr>{}</ClosureExpr></FunctionCallExpr><FunctionCallExpr><MemberAccessExpr><IdentifierExpr>
-  foo</IdentifierExpr>.bar</MemberAccessExpr>() <MultipleTrailingClosureClause>{<MultipleTrailingClosureElement>
-    arg1: <ClosureExpr>{}</ClosureExpr></MultipleTrailingClosureElement>
-  }</MultipleTrailingClosureClause></FunctionCallExpr><FunctionCallExpr><MemberAccessExpr><IdentifierExpr>
+  foo</IdentifierExpr>.bar</MemberAccessExpr>() <ClosureExpr>{}</ClosureExpr></FunctionCallExpr><MemberAccessExpr><IdentifierExpr>
+  foo</IdentifierExpr>.bar</MemberAccessExpr>() <ClosureExpr>{}</ClosureExpr>
+    arg2: <ClosureExpr>{}</ClosureExpr><FunctionCallExpr><MemberAccessExpr><IdentifierExpr>
   foo</IdentifierExpr>.bar </MemberAccessExpr><ClosureExpr>{}</ClosureExpr></FunctionCallExpr><SubscriptExpr><IdentifierExpr>
   foo</IdentifierExpr>[]</SubscriptExpr><SubscriptExpr><IdentifierExpr>
   foo</IdentifierExpr>[<TupleExprElement><IntegerLiteralExpr>1</IntegerLiteralExpr></TupleExprElement>]</SubscriptExpr><SubscriptExpr><IdentifierExpr>
   foo</IdentifierExpr>[] <ClosureExpr>{}</ClosureExpr></SubscriptExpr><SubscriptExpr><IdentifierExpr>
-  foo</IdentifierExpr>[<TupleExprElement><IntegerLiteralExpr>1</IntegerLiteralExpr></TupleExprElement>] <ClosureExpr>{}</ClosureExpr></SubscriptExpr><SubscriptExpr><IdentifierExpr>
-  foo</IdentifierExpr>[<TupleExprElement><IntegerLiteralExpr>1</IntegerLiteralExpr></TupleExprElement>] <MultipleTrailingClosureClause>{<MultipleTrailingClosureElement>
-    arg1: <ClosureExpr>{}</ClosureExpr></MultipleTrailingClosureElement><MultipleTrailingClosureElement>
-    arg2: <ClosureExpr>{}</ClosureExpr></MultipleTrailingClosureElement>
-  }</MultipleTrailingClosureClause></SubscriptExpr><SubscriptExpr><SubscriptExpr><IdentifierExpr>
+  foo</IdentifierExpr>[<TupleExprElement><IntegerLiteralExpr>1</IntegerLiteralExpr></TupleExprElement>] <ClosureExpr>{}</ClosureExpr></SubscriptExpr><IdentifierExpr>
+  foo</IdentifierExpr>[<TupleExprElement><IntegerLiteralExpr>1</IntegerLiteralExpr></TupleExprElement>] <ClosureExpr>{}</ClosureExpr>
+    arg2: <ClosureExpr>{}</ClosureExpr><SubscriptExpr><SubscriptExpr><IdentifierExpr>
   foo</IdentifierExpr>[<TupleExprElement><IntegerLiteralExpr>1</IntegerLiteralExpr></TupleExprElement>]</SubscriptExpr>[<TupleExprElement><IntegerLiteralExpr>2</IntegerLiteralExpr>,</TupleExprElement><TupleExprElement>x:<IntegerLiteralExpr>3</IntegerLiteralExpr></TupleExprElement>]</SubscriptExpr><MemberAccessExpr><FunctionCallExpr><ForcedValueExpr><MemberAccessExpr><PostfixUnaryExpr><OptionalChainingExpr><IdentifierExpr>
   foo</IdentifierExpr>?</OptionalChainingExpr>++</PostfixUnaryExpr>.bar</MemberAccessExpr>!</ForcedValueExpr>(<TupleExprElement><IdentifierExpr>baz</IdentifierExpr></TupleExprElement>)</FunctionCallExpr>.self</MemberAccessExpr><MemberAccessExpr><FunctionCallExpr><IdentifierExpr>
   foo</IdentifierExpr>()</FunctionCallExpr>.0</MemberAccessExpr><MemberAccessExpr><SpecializeExpr><IdentifierExpr>

test/Syntax/round_trip_parse_gen.swift

@@ -94,9 +94,6 @@ class C {
     _ = .foo
     _ = .foo(x: 12)
     _ = .foo { 12 }
-    _ = .foo {
-        arg1: { 12 }
-      }
     _ = .foo[12]
     _ = .foo.bar
   }
@@ -261,28 +258,20 @@ func postfix() {
   foo()
   foo() {}
   foo {}
-  foo {
-    arg1: {}
-  }
-  foo() {
-    arg1: {}
+  foo() {}
     arg2: {}
-  }
   foo {}
   foo.bar()
   foo.bar() {}
-  foo.bar() {
-    arg1: {}
-  }
+  foo.bar() {}
+    arg2: {}
   foo.bar {}
   foo[]
   foo[1]
   foo[] {}
   foo[1] {}
-  foo[1] {
-    arg1: {}
+  foo[1] {}
     arg2: {}
-  }
   foo[1][2,x:3]
   foo?++.bar!(baz).self
   foo().0