Construct signature is valid signature declaration

sheetalkamat · sheetalkamat · commit 35450d345196 · 2018-02-07T13:29:47.000-08:00
Fixes microsoft#21501
diff --git a/src/services/goToDefinition.ts b/src/services/goToDefinition.ts
@@ -217,6 +217,7 @@ namespace ts.GoToDefinition {
     function isSignatureDeclaration(node: Node): boolean {
         switch (node.kind) {
             case ts.SyntaxKind.Constructor:
+            case ts.SyntaxKind.ConstructSignature:
             case ts.SyntaxKind.FunctionDeclaration:
             case ts.SyntaxKind.MethodDeclaration:
             case ts.SyntaxKind.MethodSignature:
