From 5a41201340e7c53600d82a4034a356f72aeca8ba Mon Sep 17 00:00:00 2001
From: ShuiRuTian <158983297@qq.com>
Date: Tue, 7 Jul 2020 17:00:37 +0800
Subject: [PATCH 1/2] not escape unicode char for import path string.

---
 src/compiler/checker.ts                                | 3 ++-
 tests/cases/fourslash/quickInfoImportNonunicodePath.ts | 9 +++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 tests/cases/fourslash/quickInfoImportNonunicodePath.ts

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index aa0091f99523a..abc1364b024a2 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -4132,7 +4132,8 @@ namespace ts {
 
             function symbolToStringWorker(writer: EmitTextWriter) {
                 const entity = builder(symbol, meaning!, enclosingDeclaration, nodeFlags)!; // TODO: GH#18217
-                const printer = createPrinter({ removeComments: true });
+                // add neverAsciiEscape for GH#39027
+                const printer = enclosingDeclaration?.kind === SyntaxKind.SourceFile ? createPrinter({ removeComments: true, neverAsciiEscape: true }) : createPrinter({ removeComments: true });
                 const sourceFile = enclosingDeclaration && getSourceFileOfNode(enclosingDeclaration);
                 printer.writeNode(EmitHint.Unspecified, entity, /*sourceFile*/ sourceFile, writer);
                 return writer;
diff --git a/tests/cases/fourslash/quickInfoImportNonunicodePath.ts b/tests/cases/fourslash/quickInfoImportNonunicodePath.ts
new file mode 100644
index 0000000000000..cd4874b50bbfc
--- /dev/null
+++ b/tests/cases/fourslash/quickInfoImportNonunicodePath.ts
@@ -0,0 +1,9 @@
+/// <reference path="fourslash.ts" />
+
+// @Filename: /江南今何在/tmp.ts
+//// export const foo = 1;
+
+// @Filename: /test.ts
+//// import { foo } from "./江南/*1*/今何在/tmp";
+
+verify.quickInfoAt("1", 'module "/江南今何在/tmp"', "");

From 9cc9756f08f4a6aa4b50a1ceedbbd5c75c4163c2 Mon Sep 17 00:00:00 2001
From: ShuiRuTian <158983297@qq.com>
Date: Tue, 7 Jul 2020 18:04:08 +0800
Subject: [PATCH 2/2] fix test.

---
 tests/cases/fourslash/quickInfoImportNonunicodePath.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/cases/fourslash/quickInfoImportNonunicodePath.ts b/tests/cases/fourslash/quickInfoImportNonunicodePath.ts
index cd4874b50bbfc..62d043a214b86 100644
--- a/tests/cases/fourslash/quickInfoImportNonunicodePath.ts
+++ b/tests/cases/fourslash/quickInfoImportNonunicodePath.ts
@@ -6,4 +6,4 @@
 // @Filename: /test.ts
 //// import { foo } from "./江南/*1*/今何在/tmp";
 
-verify.quickInfoAt("1", 'module "/江南今何在/tmp"', "");
+verify.quickInfoAt("1", 'module "/江南今何在/tmp"');