From 87c0a13ec78061a6347d77ace1206de4adfcc219 Mon Sep 17 00:00:00 2001
From: sidlamsal <98344853+sidlamsal@users.noreply.github.com>
Date: Wed, 30 Apr 2025 21:48:21 -0400
Subject: [PATCH 1/2] fix and test

---
 src/compiler/binder.ts                        | 10 +++++++--
 ...notationOnExports43-expando-functions-6.ts | 22 +++++++++++++++++++
 2 files changed, 30 insertions(+), 2 deletions(-)
 create mode 100644 tests/cases/fourslash/codeFixMissingTypeAnnotationOnExports43-expando-functions-6.ts

diff --git a/src/compiler/binder.ts b/src/compiler/binder.ts
index 27ec079f614ab..0233755172b62 100644
--- a/src/compiler/binder.ts
+++ b/src/compiler/binder.ts
@@ -3491,8 +3491,14 @@ function createBinder(): (file: SourceFile, options: CompilerOptions) => void {
         let excludes = SymbolFlags.None;
         // Method-like
         if (isFunctionLikeDeclaration(getAssignedExpandoInitializer(declaration)!)) {
-            includes = SymbolFlags.Method;
-            excludes = SymbolFlags.MethodExcludes;
+            if (isPrototypeProperty) {
+                includes = SymbolFlags.Method;
+                excludes = SymbolFlags.MethodExcludes;
+            }
+            else {
+                includes = SymbolFlags.Method | SymbolFlags.Property;
+                excludes = SymbolFlags.PropertyExcludes;
+            }
         }
         // Maybe accessor-like
         else if (isCallExpression(declaration) && isBindableObjectDefinePropertyCall(declaration)) {
diff --git a/tests/cases/fourslash/codeFixMissingTypeAnnotationOnExports43-expando-functions-6.ts b/tests/cases/fourslash/codeFixMissingTypeAnnotationOnExports43-expando-functions-6.ts
new file mode 100644
index 0000000000000..08e40b38ff6bc
--- /dev/null
+++ b/tests/cases/fourslash/codeFixMissingTypeAnnotationOnExports43-expando-functions-6.ts
@@ -0,0 +1,22 @@
+/// <reference path='fourslash.ts'/>
+
+// @isolatedDeclarations: true
+// @declaration: true
+// @lib: es2019
+
+// @Filename: /code.ts
+//// export function ImportExcelProgressModal(): number {
+////   return 12
+//// }
+////
+///// export declare namespace ImportExcelProgressModal {
+////     export var show: () => boolean;
+////     export var n: number
+//// }
+////
+//// ImportExcelProgressModal.show = (): boolean => { 	
+////   return false;
+//// };
+//// ImportExcelProgressModal.n = 13
+
+verify.noErrors();

From 734c33f92fbb753db796d0b6a24311c39b95752a Mon Sep 17 00:00:00 2001
From: sidlamsal <98344853+sidlamsal@users.noreply.github.com>
Date: Wed, 30 Apr 2025 22:04:17 -0400
Subject: [PATCH 2/2] fix

---
 ...notationOnExports43-expando-functions-6.ts | 22 -------------------
 1 file changed, 22 deletions(-)
 delete mode 100644 tests/cases/fourslash/codeFixMissingTypeAnnotationOnExports43-expando-functions-6.ts

diff --git a/tests/cases/fourslash/codeFixMissingTypeAnnotationOnExports43-expando-functions-6.ts b/tests/cases/fourslash/codeFixMissingTypeAnnotationOnExports43-expando-functions-6.ts
deleted file mode 100644
index 08e40b38ff6bc..0000000000000
--- a/tests/cases/fourslash/codeFixMissingTypeAnnotationOnExports43-expando-functions-6.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-/// <reference path='fourslash.ts'/>
-
-// @isolatedDeclarations: true
-// @declaration: true
-// @lib: es2019
-
-// @Filename: /code.ts
-//// export function ImportExcelProgressModal(): number {
-////   return 12
-//// }
-////
-///// export declare namespace ImportExcelProgressModal {
-////     export var show: () => boolean;
-////     export var n: number
-//// }
-////
-//// ImportExcelProgressModal.show = (): boolean => { 	
-////   return false;
-//// };
-//// ImportExcelProgressModal.n = 13
-
-verify.noErrors();