MissingDeclaration is only ever a Statement (microsoft#23485)

Andy · web-flow · commit afde2b5bf3d9 · 2018-04-18T07:55:57.000-07:00
diff --git a/src/compiler/types.ts b/src/compiler/types.ts
@@ -1892,7 +1892,7 @@ namespace ts {
         kind: SyntaxKind.DebuggerStatement;
     }
 
-    export interface MissingDeclaration extends DeclarationStatement, ClassElement, ObjectLiteralElement, TypeElement {
+    export interface MissingDeclaration extends DeclarationStatement {
         kind: SyntaxKind.MissingDeclaration;
         name?: Identifier;
     }
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
@@ -5612,8 +5612,7 @@ namespace ts {
             || kind === SyntaxKind.GetAccessor
             || kind === SyntaxKind.SetAccessor
             || kind === SyntaxKind.IndexSignature
-            || kind === SyntaxKind.SemicolonClassElement
-            || kind === SyntaxKind.MissingDeclaration;
+            || kind === SyntaxKind.SemicolonClassElement;
     }
 
     export function isClassLike(node: Node): node is ClassLikeDeclaration {
@@ -5644,8 +5643,7 @@ namespace ts {
             || kind === SyntaxKind.CallSignature
             || kind === SyntaxKind.PropertySignature
             || kind === SyntaxKind.MethodSignature
-            || kind === SyntaxKind.IndexSignature
-            || kind === SyntaxKind.MissingDeclaration;
+            || kind === SyntaxKind.IndexSignature;
     }
 
     export function isClassOrTypeElement(node: Node): node is ClassElement | TypeElement {
@@ -5659,8 +5657,7 @@ namespace ts {
             || kind === SyntaxKind.SpreadAssignment
             || kind === SyntaxKind.MethodDeclaration
             || kind === SyntaxKind.GetAccessor
-            || kind === SyntaxKind.SetAccessor
-            || kind === SyntaxKind.MissingDeclaration;
+            || kind === SyntaxKind.SetAccessor;
     }
 
     // Type
diff --git a/tests/baselines/reference/api/tsserverlibrary.d.ts b/tests/baselines/reference/api/tsserverlibrary.d.ts
@@ -1160,7 +1160,7 @@ declare namespace ts {
     interface DebuggerStatement extends Statement {
         kind: SyntaxKind.DebuggerStatement;
     }
-    interface MissingDeclaration extends DeclarationStatement, ClassElement, ObjectLiteralElement, TypeElement {
+    interface MissingDeclaration extends DeclarationStatement {
         kind: SyntaxKind.MissingDeclaration;
         name?: Identifier;
     }
diff --git a/tests/baselines/reference/api/typescript.d.ts b/tests/baselines/reference/api/typescript.d.ts
@@ -1160,7 +1160,7 @@ declare namespace ts {
     interface DebuggerStatement extends Statement {
         kind: SyntaxKind.DebuggerStatement;
     }
-    interface MissingDeclaration extends DeclarationStatement, ClassElement, ObjectLiteralElement, TypeElement {
+    interface MissingDeclaration extends DeclarationStatement {
         kind: SyntaxKind.MissingDeclaration;
         name?: Identifier;
     }

Original file line number	Diff line number	Diff line change
`@@ -1892,7 +1892,7 @@ namespace ts {`
`1892`	`1892`	`kind: SyntaxKind.DebuggerStatement;`
`1893`	`1893`	`}`
`1894`	`1894`
`1895`		`- export interface MissingDeclaration extends DeclarationStatement, ClassElement, ObjectLiteralElement, TypeElement {`
	`1895`	`+ export interface MissingDeclaration extends DeclarationStatement {`
`1896`	`1896`	`kind: SyntaxKind.MissingDeclaration;`
`1897`	`1897`	`name?: Identifier;`
`1898`	`1898`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1160,7 +1160,7 @@ declare namespace ts {`
`1160`	`1160`	`interface DebuggerStatement extends Statement {`
`1161`	`1161`	`kind: SyntaxKind.DebuggerStatement;`
`1162`	`1162`	`}`
`1163`		`- interface MissingDeclaration extends DeclarationStatement, ClassElement, ObjectLiteralElement, TypeElement {`
	`1163`	`+ interface MissingDeclaration extends DeclarationStatement {`
`1164`	`1164`	`kind: SyntaxKind.MissingDeclaration;`
`1165`	`1165`	`name?: Identifier;`
`1166`	`1166`	`}`