fix(ivy): let ngtsc unwrap expressions when resolving forwardRef (#29886)

Previously, ngtsc would fail to resolve `forwardRef` calls if they
contained additional parenthesis or casts. This commit changes the
behavior to first unwrap the AST nodes to see past such insignificant
nodes, resolving the issue.

Fixes #29639

PR Close #29886

packages/compiler-cli/src/ngtsc/annotations/src/util.ts

@@ -197,6 +197,7 @@ export function unwrapExpression(node: ts.Expression): ts.Expression {
 }
 
 function expandForwardRef(arg: ts.Expression): ts.Expression|null {
+  arg = unwrapExpression(arg);
   if (!ts.isArrowFunction(arg) && !ts.isFunctionExpression(arg)) {
     return null;
   }
@@ -228,6 +229,7 @@ function expandForwardRef(arg: ts.Expression): ts.Expression|null {
  * expression otherwise
  */
 export function unwrapForwardRef(node: ts.Expression, reflector: ReflectionHost): ts.Expression {
+  node = unwrapExpression(node);
   if (!ts.isCallExpression(node) || !ts.isIdentifier(node.expression) ||
       node.arguments.length !== 1) {
     return node;