fix spelling

Author: Kingwl

src/compiler/checker.ts

@@ -25666,8 +25666,8 @@ namespace ts {
             // For a binding pattern, validate the initializer and exit
             if (isBindingPattern(node.name)) {
                 const needCheckInitializer = node.initializer && node.parent.parent.kind !== SyntaxKind.ForInStatement;
-                const needCheckWinendType = node.name.elements.length === 0;
-                if (needCheckInitializer || needCheckWinendType) {
+                const needCheckWidenedType = node.name.elements.length === 0;
+                if (needCheckInitializer || needCheckWidenedType) {
                     // Don't validate for-in initializer as it is already an error
                     const widenedType = getWidenedTypeForVariableLikeDeclaration(node);
                     if (needCheckInitializer) {
@@ -25676,15 +25676,12 @@ namespace ts {
                             checkNonNullType(initializerType, node);
                         }
                         else {
-                            checkTypeAssignableTo(initializerType, widenedType, node, /*headMessage*/ undefined);
+                            checkTypeAssignableToAndOptionallyElaborate(initializerType, getWidenedTypeForVariableLikeDeclaration(node), node, node.initializer);
                         }
                         checkParameterInitializer(node);
-                    } else {
-                        checkTypeAssignableToAndOptionallyElaborate(initializerType, getWidenedTypeForVariableLikeDeclaration(node), node, node.initializer);
                     }
-
                     // check the binding pattern with empty elements
-                    if (needCheckWinendType) {
+                    if (needCheckWidenedType) {
                         if (isArrayBindingPattern(node.name)) {
                             checkIteratedTypeOrElementType(widenedType, node, /* allowStringInput */ false, /* allowAsyncIterables */ false);
                         }