From 54908f63453e4f16a185a376e67be8efa34b1681 Mon Sep 17 00:00:00 2001
From: Josh Goldberg <josh@fullscreenmario.com>
Date: Sat, 9 Dec 2017 14:41:47 -0800
Subject: [PATCH] Allowed trailing commas in type parameter/argument lists

This change is only one source file and one error file... there must be something I'm missing!?
---
 src/compiler/checker.ts                                   | 4 ----
 .../typeParameterListWithTrailingComma1.errors.txt        | 8 --------
 2 files changed, 12 deletions(-)
 delete mode 100644 tests/baselines/reference/typeParameterListWithTrailingComma1.errors.txt

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 4f91262497382..a3f240e8d5a70 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -25545,10 +25545,6 @@ namespace ts {
         }
 
         function checkGrammarTypeParameterList(typeParameters: NodeArray<TypeParameterDeclaration>, file: SourceFile): boolean {
-            if (checkGrammarForDisallowedTrailingComma(typeParameters)) {
-                return true;
-            }
-
             if (typeParameters && typeParameters.length === 0) {
                 const start = typeParameters.pos - "<".length;
                 const end = skipTrivia(file.text, typeParameters.end) + ">".length;
diff --git a/tests/baselines/reference/typeParameterListWithTrailingComma1.errors.txt b/tests/baselines/reference/typeParameterListWithTrailingComma1.errors.txt
deleted file mode 100644
index ac20e826969ec..0000000000000
--- a/tests/baselines/reference/typeParameterListWithTrailingComma1.errors.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-tests/cases/compiler/typeParameterListWithTrailingComma1.ts(1,10): error TS1009: Trailing comma not allowed.
-
-
-==== tests/cases/compiler/typeParameterListWithTrailingComma1.ts (1 errors) ====
-    class C<T,> {
-             ~
-!!! error TS1009: Trailing comma not allowed.
-    }
\ No newline at end of file