Use Implicit Type refactoring incorrect for assigning ValueTuple.Create into tuple

[jcouv]

See background.

The type is apparent in this case and so this test should pass. Currently the action is not available because IsTypeApparentInDeclaration doesn't think the type is apparent.
I think this may be fixed as a side-effect of the work Aleksey is doing on unifying (tuple) and ValueTuple types.

        [WpfFact, Trait(Traits.Feature, Traits.Features.CodeActionsUseImplicitType), Trait(Traits.Feature, Test.Utilities.Traits.Features.Tuples)]
        public async Task ValueTupleCreate_2()
        {
            await TestAsync(
@"using System; class C { static void M() { [|(int, int)|] s = ValueTuple.Create(1, 1); } }" + trivial2uple,
@"using System; class C { static void M() { var s = ValueTuple.Create(1, 1); } }" + trivial2uple,
options: ImplicitTypeWhereApparent(),
parseOptions: TestOptions.Regular.WithTuplesFeature(),
withScriptOption: true);
        }

File UseImplicitTypeTests.cs