Better error reporting for unary decrement/increment operators

There was a missing routing for those operators in parse_stmt
function.

core/odin/parser/parser.odin

@@ -1390,7 +1390,7 @@ parse_stmt :: proc(p: ^Parser) -> ^ast.Stmt {
 	     .Pointer,
 	     .Asm, // Inline assembly
 	     // Unary Expressions
-	     .Add, .Sub, .Xor, .Not, .And:
+	     .Add, .Sub, .Xor, .Not, .And, .Increment, .Decrement:
 
 		s := parse_simple_stmt(p, {Stmt_Allow_Flag.Label})
 		expect_semicolon(p, s)

src/parser.cpp

@@ -5393,7 +5393,10 @@ gb_internal Ast *parse_stmt(AstFile *f) {
 	case Token_Xor:
 	case Token_Not:
 	case Token_And:
-	case Token_Mul: // Used for error handling when people do C-like things
+	// Used for error handling when people do C-like things
+	case Token_Mul:
+	case Token_Increment:
+	case Token_Decrement:
 		s = parse_simple_stmt(f, StmtAllowFlag_Label);
 		expect_semicolon(f);
 		return s;