fix(ivy): ngcc - support bare array constructor param decorators (#30591)

Previously we expected the constructor parameter `decorators`
property to be an array wrapped in a function. Now we also support
an array not wrapped in a function.

PR Close #30591

packages/compiler-cli/ngcc/test/host/esm2015_host_spec.ts

@@ -25,6 +25,7 @@ runInEachFileSystem(() => {
     let _: typeof absoluteFrom;
 
     let SOME_DIRECTIVE_FILE: TestFile;
+    let CTOR_DECORATORS_ARRAY_FILE: TestFile;
     let ACCESSORS_FILE: TestFile;
     let SIMPLE_CLASS_FILE: TestFile;
     let CLASS_EXPRESSION_FILE: TestFile;
@@ -89,6 +90,17 @@ runInEachFileSystem(() => {
   `,
       };
 
+      CTOR_DECORATORS_ARRAY_FILE = {
+        name: _('/ctor_decorated_as_array.js'),
+        contents: `
+          class CtorDecoratedAsArray {
+            constructor(arg1) {
+            }
+          }
+          CtorDecoratedAsArray.ctorParameters = [{ type: ParamType, decorators: [{ type: Inject },] }];
+        `,
+      };
+
       ACCESSORS_FILE = {
         name: _('/accessors.js'),
         contents: `
@@ -1078,6 +1090,20 @@ runInEachFileSystem(() => {
             parameters, ['ViewContainerRef', 'TemplateRef', null]);
       });
 
+      it('should accept `ctorParameters` as an array', () => {
+        loadTestFiles([CTOR_DECORATORS_ARRAY_FILE]);
+        const {program} = makeTestBundleProgram(CTOR_DECORATORS_ARRAY_FILE.name);
+        const host = new Esm2015ReflectionHost(new MockLogger(), false, program.getTypeChecker());
+        const classNode = getDeclaration(
+            program, CTOR_DECORATORS_ARRAY_FILE.name, 'CtorDecoratedAsArray',
+            isNamedClassDeclaration);
+        const parameters = host.getConstructorParameters(classNode) !;
+
+        expect(parameters).toBeDefined();
+        expect(parameters.map(parameter => parameter.name)).toEqual(['arg1']);
+        expectTypeValueReferencesForParameters(parameters, ['ParamType']);
+      });
+
       it('should throw if the symbol is not a class', () => {
         loadTestFiles([FOO_FUNCTION_FILE]);
         const {program} = makeTestBundleProgram(FOO_FUNCTION_FILE.name);