Allow empty lines in query syntax

Src/CSharpier.Tests/FormattingTests/TestFiles/QueryExpressions.cst

@@ -73,6 +73,21 @@ class ClassName
  CustCount____________________________ = g.Count()
  };
 
+ var complexQuerySupportsNewLines =
+ from c in customers
+
+ let d = c
+
+ where d != null
+
+ join c1 in customers1 on c1 equals c
+
+ group c by c.Country into g
+
+ orderby g.Count() ascending
+
+ select new { Country = g.Key, CustCount = g.Count() };
+
  var asyncQuery = await
  from c in customers
  from u in users

Src/CSharpier/SyntaxPrinter/SyntaxNodePrinters/GroupClause.cs

@@ -5,6 +5,7 @@ internal static class GroupClause
  public static Doc Print(GroupClauseSyntax node, FormattingContext context)
  {
  return Doc.Concat(
+ ExtraNewLines.Print(node),
  Token.PrintWithSuffix(node.GroupKeyword, " ", context),
  Node.Print(node.GroupExpression, context),
  " ",

Src/CSharpier/SyntaxPrinter/SyntaxNodePrinters/JoinClause.cs

@@ -4,26 +4,29 @@ internal static class JoinClause
 {
  public static Doc Print(JoinClauseSyntax node, FormattingContext context)
  {
- return Doc.Group(
- Token.PrintWithSuffix(node.JoinKeyword, " ", context),
- node.Type != null ? Doc.Concat(Node.Print(node.Type, context), " ") : Doc.Null,
- Token.PrintWithSuffix(node.Identifier, " ", context),
- Token.PrintWithSuffix(node.InKeyword, " ", context),
- Node.Print(node.InExpression, context),
- Doc.Indent(
- Doc.Line,
- Token.PrintWithSuffix(node.OnKeyword, " ", context),
- Node.Print(node.LeftExpression, context),
- " ",
- Token.PrintWithSuffix(node.EqualsKeyword, " ", context),
- Node.Print(node.RightExpression, context),
- node.Into != null
- ? Doc.Concat(
- Doc.Line,
- Token.PrintWithSuffix(node.Into.IntoKeyword, " ", context),
- Token.Print(node.Into.Identifier, context)
- )
- : Doc.Null
+ return Doc.Concat(
+ ExtraNewLines.Print(node),
+ Doc.Group(
+ Token.PrintWithSuffix(node.JoinKeyword, " ", context),
+ node.Type != null ? Doc.Concat(Node.Print(node.Type, context), " ") : Doc.Null,
+ Token.PrintWithSuffix(node.Identifier, " ", context),
+ Token.PrintWithSuffix(node.InKeyword, " ", context),
+ Node.Print(node.InExpression, context),
+ Doc.Indent(
+ Doc.Line,
+ Token.PrintWithSuffix(node.OnKeyword, " ", context),
+ Node.Print(node.LeftExpression, context),
+ " ",
+ Token.PrintWithSuffix(node.EqualsKeyword, " ", context),
+ Node.Print(node.RightExpression, context),
+ node.Into != null
+ ? Doc.Concat(
+ Doc.Line,
+ Token.PrintWithSuffix(node.Into.IntoKeyword, " ", context),
+ Token.Print(node.Into.Identifier, context)
+ )
+ : Doc.Null
+ )
  )
  );
  }

Src/CSharpier/SyntaxPrinter/SyntaxNodePrinters/LetClause.cs

@@ -5,6 +5,7 @@ internal static class LetClause
  public static Doc Print(LetClauseSyntax node, FormattingContext context)
  {
  return Doc.Concat(
+ ExtraNewLines.Print(node),
  Token.PrintWithSuffix(node.LetKeyword, " ", context),
  Token.PrintWithSuffix(node.Identifier, " ", context),
  Token.PrintWithSuffix(node.EqualsToken, " ", context),

Src/CSharpier/SyntaxPrinter/SyntaxNodePrinters/OrderByClause.cs

@@ -5,6 +5,7 @@ internal static class OrderByClause
  public static Doc Print(OrderByClauseSyntax node, FormattingContext context)
  {
  return Doc.Concat(
+ ExtraNewLines.Print(node),
  Token.Print(node.OrderByKeyword, context),
  SeparatedSyntaxList.Print(
  node.Orderings,

Src/CSharpier/SyntaxPrinter/SyntaxNodePrinters/SelectClause.cs

@@ -5,6 +5,7 @@ internal static class SelectClause
  public static Doc Print(SelectClauseSyntax node, FormattingContext context)
  {
  return Doc.Concat(
+ ExtraNewLines.Print(node),
  Token.PrintWithSuffix(node.SelectKeyword, " ", context),
  Node.Print(node.Expression, context)
  );

Src/CSharpier/SyntaxPrinter/SyntaxNodePrinters/WhereClause.cs

@@ -4,9 +4,12 @@ internal static class WhereClause
 {
  public static Doc Print(WhereClauseSyntax node, FormattingContext context)
  {
- return Doc.Group(
- Token.Print(node.WhereKeyword, context),
- Doc.Indent(Doc.Line, Node.Print(node.Condition, context))
+ return Doc.Concat(
+ ExtraNewLines.Print(node),
+ Doc.Group(
+ Token.Print(node.WhereKeyword, context),
+ Doc.Indent(Doc.Line, Node.Print(node.Condition, context))
+ )
  );
  }
 }