AsyncToSyncMethodTransformer: handle array types (#968)

Ref: #967

Author: omsmith

src/D2L.CodeStyle.Analyzers/Async/Generator/AsyncToSyncMethodTransformer.cs

@@ -111,6 +111,10 @@ private TypeSyntax TransformType( TypeSyntax typeSynt, bool isReturnType = false
 			return typeSynt;
 		}
 
+		if( returnTypeInfo.Type is IArrayTypeSymbol ) {
+			return typeSynt;
+		}
+
 		if( returnTypeInfo.Type.ContainingNamespace.ToString() == "System.Threading.Tasks" ) {
 			switch( returnTypeInfo.Type.MetadataName ) {
 				case "Task":

tests/D2L.CodeStyle.Analyzers.Test/Async/Generator/AsyncToSyncMethodTransformerTests.cs

@@ -84,6 +84,15 @@ public void VariableDeclaration() {
 		Assert.AreEqual( "[Blocking] void Bar() { IBaz q = m_bazValidator.Validate( bar ); }", actual.Value.ToFullString() );
 	}
 
+	[Test]
+	public void ArrayVariableDeclaration() {
+		var actual = Transform( @"[GenerateSync] async Task BarAsync() { IBaz[] q = await m_bazValidator.ValidateAsync( bar ); }" );
+
+		Assert.IsTrue( actual.Success );
+		Assert.IsEmpty( actual.Diagnostics );
+		Assert.AreEqual( "[Blocking] void Bar() { IBaz[] q = m_bazValidator.Validate( bar ); }", actual.Value.ToFullString() );
+	}
+
 	[Test]
 	public void PredefinedType() {
 		var actual = Transform( @"[GenerateSync] async Task BarAsync() { string.IsNullOrEmpty(""""); }" );