Fixed type lookup on non-exported value symbol when it has an export symbol (#52140)

Author: Andarist

src/compiler/checker.ts

@@ -27198,7 +27198,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
     }
 
     function getTypeOfSymbolAtLocation(symbol: Symbol, location: Node) {
-        symbol = symbol.exportSymbol || symbol;
+        symbol = getExportSymbolOfValueSymbolIfExported(symbol);
 
         // If we have an identifier or a property access at the given location, if the location is
         // an dotted name expression, and if the location is not an assignment target, obtain the type

tests/cases/fourslash/quickInfoOnValueSymbolWithoutExportWithSameNameExportSymbol.ts

@@ -0,0 +1,22 @@
+/// <reference path='fourslash.ts' />
+// @strict: true
+//// 
+//// declare function num(): number
+//// const /*1*/Unit = num()
+//// export type Unit = number
+//// const value = /*2*/Unit
+////
+//// function Fn() {}
+//// export type Fn = () => void
+//// /*3*/Fn()
+//// 
+//// // repro from #41897
+//// const /*4*/X = 1;
+//// export interface X {}
+
+verify.quickInfoAt("1", "const Unit: number");
+verify.quickInfoAt("2", "const Unit: number");
+
+verify.quickInfoAt("3", "function Fn(): void");
+
+verify.quickInfoAt("4", "const X: 1");