fix(47670): remove import alias that uses the same name (#47676)

Author: a-tarasyuk

src/services/organizeImports.ts

@@ -236,10 +236,9 @@ namespace ts.OrganizeImports {
                 }
             }
 
-            newImportSpecifiers.push(...flatMap(namedImports, i => (i.importClause!.namedBindings as NamedImports).elements)); // TODO: GH#18217
+            newImportSpecifiers.push(...getNewImportSpecifiers(namedImports));
 
             const sortedImportSpecifiers = sortSpecifiers(newImportSpecifiers);
-
             const importDecl = defaultImports.length > 0
                 ? defaultImports[0]
                 : namedImports[0];
@@ -492,4 +491,20 @@ namespace ts.OrganizeImports {
                 return 6;
         }
     }
+
+    function getNewImportSpecifiers(namedImports: ImportDeclaration[]) {
+        return flatMap(namedImports, namedImport =>
+            map(tryGetNamedBindingElements(namedImport), importSpecifier =>
+                importSpecifier.name && importSpecifier.propertyName && importSpecifier.name.escapedText === importSpecifier.propertyName.escapedText
+                    ? factory.updateImportSpecifier(importSpecifier, importSpecifier.isTypeOnly, /*propertyName*/ undefined, importSpecifier.name)
+                    : importSpecifier
+            )
+        );
+    }
+
+    function tryGetNamedBindingElements(namedImport: ImportDeclaration) {
+        return namedImport.importClause?.namedBindings && isNamedImports(namedImport.importClause.namedBindings)
+            ? namedImport.importClause.namedBindings.elements
+            : undefined;
+    }
 }

tests/cases/fourslash/organizeImports8.ts

@@ -0,0 +1,9 @@
+/// <reference path="fourslash.ts" />
+
+////import { foo as foo } from "foo";
+////foo;
+
+verify.organizeImports(
+`import { foo } from "foo";
+foo;`
+);

tests/cases/fourslash/organizeImports9.ts

@@ -0,0 +1,9 @@
+/// <reference path="fourslash.ts" />
+
+////import { a as a, b, c, d as d, e as e } from "foo";
+////a(b, d);
+
+verify.organizeImports(
+`import { a, b, d } from "foo";
+a(b, d);`
+);