Support direct abstract declarator processing

[ForNeVeR]

Follow-up from #234: we should support processing of any IDirectAbstractDeclarator in LocalDeclarationInfo::ProcessDirectAbstractDeclarator.

Look for the number 332 in our code when looking how to implement this feature.

[kant2002]

What kind of code trigger this code path? What test do we need for this ?

[ForNeVeR]

In a declaration of typedef void(*function)(int, const int*, const int*), const int* is an AbstractDeclarator, but it has IDirectAbstractDeclarator = null.

I sugges to take a look at the implementations of IDirectAbstractDeclarator and maybe figure out what's this all about from their types.

Sadly, I have no examples of such code, yet.

[abrahamFerga]

(#450 not finished yet) This issue makes the following code fail to compile:

int main() {
    return sizeof(int[5]);
}

[ForNeVeR]

Encountered in #61:

Cesium.Core.WipException: This work is in progress. Direct abstract declarator is not supported, yet: ArrayDirectAbstractDeclarator { Base = , TypeQualifiers = , Size = ConstantLiteralExpression { Constant = Yoakke.SynKit.C.Syntax.CToken } }.. See https://github.com/ForNeVeR/Cesium/issues/332.
   at Cesium.CodeGen.Ir.Declarations.LocalDeclarationInfo.ProcessDirectAbstractDeclarator(IDirectAbstractDeclarator directAbstractDeclarator, IType type) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\LocalDeclarationInfo.cs:line 294
   at Cesium.CodeGen.Ir.Declarations.LocalDeclarationInfo.Of(IReadOnlyList`1 specifiers, AbstractDeclarator abstractDeclarator) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\LocalDeclarationInfo.cs:line 52
   at Cesium.CodeGen.Ir.ParameterInfo.Of(ParameterDeclaration declaration, Int32 index) in G:\Projects\Cesium\Cesium.CodeGen\Ir\ParametersInfo.cs:line 49
   at System.Linq.Enumerable.SelectIterator[TSource,TResult](IEnumerable`1 source, Func`3 selector)+MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Cesium.CodeGen.Ir.ParametersInfo.Of(ParameterTypeList parameters) in G:\Projects\Cesium\Cesium.CodeGen\Ir\ParametersInfo.cs:line 35
   at Cesium.CodeGen.Ir.Declarations.LocalDeclarationInfo.ProcessFunctionParameters(IType returnType, ParameterTypeList parameters) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\LocalDeclarationInfo.cs:line 416
   at Cesium.CodeGen.Ir.Declarations.LocalDeclarationInfo.ProcessDirectDeclarator(IDirectDeclarator directDeclarator, IType type, Initializer initializer) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\LocalDeclarationInfo.cs:line 205
   at Cesium.CodeGen.Ir.Declarations.LocalDeclarationInfo.Of(IReadOnlyList`1 specifiers, Declarator declarator, Initializer initializer) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\LocalDeclarationInfo.cs:line 39
   at Cesium.CodeGen.Ir.Declarations.IScopedDeclarationInfo.IdentifierOf(IReadOnlyList`1 specifiers, InitDeclarator initDeclarator) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\ScopedDeclarationInfo.cs:line 96
   at Cesium.CodeGen.Ir.Declarations.IScopedDeclarationInfo.<>c__DisplayClass2_0.<IdentifierOf>b__0(InitDeclarator id) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\ScopedDeclarationInfo.cs:line 85
   at System.Linq.Enumerable.SelectIListIterator`2.Fill(IList`1 source, Span`1 results, Func`2 func)
   at System.Linq.Enumerable.SelectIListIterator`2.ToList()
   at Cesium.CodeGen.Ir.Declarations.IScopedDeclarationInfo.IdentifierOf(IReadOnlyList`1 specifiers, IEnumerable`1 initDeclarators) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\ScopedDeclarationInfo.cs:line 84
   at Cesium.CodeGen.Ir.Declarations.IScopedDeclarationInfo.Of(Declaration declaration) in G:\Projects\Cesium\Cesium.CodeGen\Ir\Declarations\ScopedDeclarationInfo.cs:line 59
   at Cesium.CodeGen.Extensions.TranslationUnitEx.GetTopLevelDeclarations(SymbolDeclaration sym)+MoveNext() in G:\Projects\Cesium\Cesium.CodeGen\Extensions\TranslationUnitEx.cs:line 22
   at System.Linq.Enumerable.SelectManySingleSelectorIterator`2.MoveNext()
   at System.Linq.Enumerable.SelectEnumerableIterator`2.ToList()
   at Cesium.CodeGen.Contexts.AssemblyContext.EmitTranslationUnit(String name, TranslationUnit translationUnit) in G:\Projects\Cesium\Cesium.CodeGen\Contexts\AssemblyContext.cs:line 53
   at Cesium.Compiler.Compilation.GenerateCode(AssemblyContext context, String inputFilePath) in G:\Projects\Cesium\Cesium.Compiler\Compilation.cs:line 118
   at Cesium.Compiler.Compilation.Compile(IEnumerable`1 inputFilePaths, String outputFilePath, CompilationOptions compilationOptions) in G:\Projects\Cesium\Cesium.Compiler\Compilation.cs:line 40
   at Program.<>c.<<<Main>$>b__0_0>d.MoveNext() in G:\Projects\Cesium\Cesium.Compiler\Main.cs:line 39
--- End of stack trace from previous location ---
   at Cesium.Compiler.CommandLineParser.<>c__DisplayClass0_0.<<ParseCommandLineArgs>b__1>d.MoveNext() in G:\Projects\Cesium\Cesium.Compiler\CommandLineParser.cs:line 37
--- End of stack trace from previous location ---
   at Cesium.Compiler.CommandLineParser.ParseCommandLineArgs(String[] args, ICompilerReporter reporter, Func`2 worker) in G:\Projects\Cesium\Cesium.Compiler\CommandLineParser.cs:line 18
   at Program.<Main>$(String[] args) in G:\Projects\Cesium\Cesium.Compiler\Main.cs:line 6
   at Program.<Main>(String[] args)