use EmitFlags.SingleLine

Author: Arthur Ozga

src/compiler/checker.ts

@@ -2561,7 +2561,7 @@ namespace ts {
                     const members = createTypeNodesFromResolvedType(resolved);
                     context.flags = savedFlags;
                     const typeLiteralNode = createTypeLiteralNode(members);
-                    return setEmitFlags(typeLiteralNode, EmitFlags.ToStringFormatting);
+                    return setEmitFlags(typeLiteralNode, EmitFlags.SingleLine);
                 }
 
                 function shouldAddParenthesisAroundFunctionType(callSignature: Signature, context: NodeBuilderContext) {
@@ -2865,7 +2865,7 @@ namespace ts {
                         if (clone.kind === SyntaxKind.BindingElement) {
                             (<BindingElement>clone).initializer = undefined;
                         }
-                        return setEmitFlags(clone, EmitFlags.ToStringFormatting);
+                        return setEmitFlags(clone, EmitFlags.SingleLine);
                     }
                 }
             }

src/compiler/emitter.ts

@@ -962,7 +962,7 @@ namespace ts {
         function emitTypeLiteral(node: TypeLiteralNode) {
             write("{");
             if (node.members.length > 0) {
-                emitList(node, node.members, getEmitFlags(node) & EmitFlags.ToStringFormatting ? ListFormat.SingleLineTypeLiteralMembers : ListFormat.MultiLineTypeLiteralMembers);
+                emitList(node, node.members, getEmitFlags(node) & EmitFlags.SingleLine ? ListFormat.SingleLineTypeLiteralMembers : ListFormat.MultiLineTypeLiteralMembers);
             }
             write("}");
         }
@@ -1054,7 +1054,7 @@ namespace ts {
             }
             else {
                 write("{");
-                emitList(node, elements, getEmitFlags(node) & EmitFlags.ToStringFormatting ? ListFormat.ObjectBindingPatternElements : ListFormat.ObjectBindingPatternElementsWithSpaceBetweenBraces);
+                emitList(node, elements, getEmitFlags(node) & EmitFlags.SingleLine ? ListFormat.ObjectBindingPatternElements : ListFormat.ObjectBindingPatternElementsWithSpaceBetweenBraces);
                 write("}");
             }
         }

src/compiler/types.ts

@@ -3979,7 +3979,6 @@ namespace ts {
         NoHoisting = 1 << 20,                    // Do not hoist this declaration in --module system
         HasEndOfDeclarationMarker = 1 << 21,     // Declaration has an associated NotEmittedStatement to mark the end of the declaration
         Iterator = 1 << 22,                      // The expression to a `yield*` should be treated as an Iterator when down-leveling, not an Iterable.
-        ToStringFormatting = 1 << 23
     }
 
     export interface EmitHelper {