Bump <LangVersion/> to 14

Author: YoshiRulz

.editorconfig

@@ -15,6 +15,7 @@ csharp_space_after_cast = true
 csharp_indent_switch_labels = true
 csharp_indent_case_contents = true
 csharp_indent_labels = one_less_than_current
+dotnet_style_require_accessibility_modifiers = for_non_interface_members
 
 # Style rules
 # Can't be in .globalconfig because dotnet format doesn't respect that https://github.com/dotnet/format/issues/1643

Common.props

@@ -18,7 +18,7 @@
 		<Features>strict</Features>
 		<IsTargetingNetFramework>$(TargetFramework.StartsWith("net4"))</IsTargetingNetFramework>
 		<GenerateDocumentationFile>true</GenerateDocumentationFile> <!-- it would be nice to rename these to *.api_reference.xml or something, but it seems https://github.com/dotnet/standard/issues/614 was never fixed -->
-		<LangVersion>12.0</LangVersion>
+		<LangVersion>14.0</LangVersion>
 		<ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
 		<NoWarn>$(NoWarn);CS1591;SA0001</NoWarn>
 		<Nullable>enable</Nullable>

src/BizHawk.Emulation.Cores/Consoles/PC Engine/QuickCollections.cs

@@ -53,7 +53,7 @@ public QuickQueue(int capacity)
 		public void Enqueue(T item)
 		{
 			if (size >= buffer.Length)
-				throw new Exception($"{nameof(QuickQueue<T>)} capacity breached!");
+				throw new Exception($"{nameof(QuickQueue<>)} capacity breached!");
 
 			buffer[tail] = item;
 			tail = (tail + 1) % buffer.Length;
@@ -78,7 +78,7 @@ public T[] ToArray(int elemSize)
 		public T Dequeue()
 		{
 			if (size == 0)
-				throw new Exception($"{nameof(QuickQueue<T>)} is empty!");
+				throw new Exception($"{nameof(QuickQueue<>)} is empty!");
 
 			T item = buffer[head];
 			head = (head + 1) % buffer.Length;