Remove need for semicolon after return

src/compiler/Syntax/Diagnostics/ConsoleColors.cs

@@ -106,7 +106,6 @@ public static class ConsoleColors
                     case Symbol.Caret:
                     case Symbol.Ampersand:
                         return White;
-                    case Symbol.Semicolon:
                     case Symbol.Colon:
                     case Symbol.Comma:
                     case Symbol.Period:

src/compiler/Syntax/Parsing/Parser.cs

@@ -10,6 +10,7 @@ namespace Syntax.Parsing;
 public static class Parser
 {
     private static string _namespace = null!;
+    private static NubType? _functionReturnType;
     private static List<Diagnostic> _diagnostics = [];
     private static IEnumerable<Token> _tokens = [];
     private static int _index;
@@ -20,6 +21,7 @@ public static class Parser
         _namespace = "global";
         _diagnostics = [];
         _index = 0;
+        _functionReturnType = null;
 
         if (TryExpectSymbol(Symbol.Namespace))
         {
@@ -105,6 +107,7 @@ public static class Parser
         }
 
         var returnType = TryExpectSymbol(Symbol.Colon) ? ParseType() : new NubVoidType();
+        _functionReturnType = returnType;
 
         var isExtern = modifiers.RemoveAll(x => x.Modifier == Modifier.Extern) > 0;
         if (isExtern)
@@ -371,8 +374,9 @@ public static class Parser
     private static ReturnNode ParseReturn(int startIndex)
     {
         ExpectSymbol(Symbol.Return);
+
         var value = Optional<ExpressionNode>.Empty();
-        if (!TryExpectSymbol(Symbol.Semicolon))
+        if (_functionReturnType is not NubVoidType)
         {
             value = ParseExpression();
         }

src/compiler/Syntax/Tokenization/SymbolToken.cs

@@ -14,7 +14,6 @@ public enum Symbol
     While,
     Break,
     Continue,
-    Semicolon,
     Colon,
     OpenParen,
     CloseParen,

src/compiler/Syntax/Tokenization/Tokenizer.cs

@@ -41,7 +41,6 @@ public static class Tokenizer
 
     private static readonly Dictionary<char, Symbol> Chars = new()
     {
-        [';'] = Symbol.Semicolon,
         [':'] = Symbol.Colon,
         ['('] = Symbol.OpenParen,
         [')'] = Symbol.CloseParen,