From b2176c1872ca67fe7a97491639a34942e5c35a65 Mon Sep 17 00:00:00 2001
From: Arthur Ozga <aozgaa-ms@outlook.com>
Date: Mon, 15 May 2017 19:11:36 -0700
Subject: [PATCH] no ascii escaping in param names

---
 src/compiler/checker.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index d9b3c52b73d..0f2e5e9e0ff 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -2818,7 +2818,7 @@ namespace ts {
                 const modifiers = parameterDeclaration.modifiers && parameterDeclaration.modifiers.map(getSynthesizedClone);
                 const dotDotDotToken = isRestParameter(parameterDeclaration) ? createToken(SyntaxKind.DotDotDotToken) : undefined;
                 const name = parameterDeclaration.name.kind === SyntaxKind.Identifier ?
-                    getSynthesizedClone(parameterDeclaration.name) :
+                    setEmitFlags(getSynthesizedClone(parameterDeclaration.name), EmitFlags.NoAsciiEscaping) :
                     cloneBindingName(parameterDeclaration.name);
                 const questionToken = isOptionalParameter(parameterDeclaration) ? createToken(SyntaxKind.QuestionToken) : undefined;
 
@@ -2846,7 +2846,7 @@ namespace ts {
                         if (clone.kind === SyntaxKind.BindingElement) {
                             (<BindingElement>clone).initializer = undefined;
                         }
-                        return setEmitFlags(clone, EmitFlags.SingleLine);
+                        return setEmitFlags(clone, EmitFlags.SingleLine | EmitFlags.NoAsciiEscaping);
                     }
                 }
             }