Fix ParameterElementImpl.hasImplicitType for function-typed parameters.

pkg/analyzer/test/src/summary/resynthesize_common.dart

Index: pkg/analyzer/test/src/summary/resynthesize_common.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_common.dart b/pkg/analyzer/test/src/summary/resynthesize_common.dart
index 42025c213361651c2de80972b2b0d5bad55b8057..ef645ecd62e596dafd98ed5b638a9c7286262c23 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_common.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_common.dart
@@ -8417,6 +8417,14 @@ void f<T, U>((U) → T x) {}
     }
   }
 
+  test_function_typed_parameter_implicit() {
+    var library = checkLibrary('f(g()) => null;');
+    expect(
+        library
+            .definingCompilationUnit.functions[0].parameters[0].hasImplicitType,
+        isFalse);
+  }
+
   test_functions() {
     var library = checkLibrary('f() {} g() {}');
     if (isStrongMode) {