Added multiline comments

.gitignore

@@ -3,3 +3,4 @@ out/
 *.zip
 prg/**/*.ast
 prg/**/*.out
+prg/**/*.pins25

prg/test.pins25

@@ -1,4 +0,0 @@
-fun putint(n)
-
-fun main() =
-	putint(__LINE__)

src/pins25/common/Token.java

@@ -148,11 +148,7 @@ public record Token(Report.Location location, Symbol symbol, String lexeme) impl
         /**
          * Simbol {@code )}.
          */
-        RPAREN,
-        /**
-         * Simbol {@code __LINE__}.
-         */
-        LINE
+        RPAREN;
     }
 
     @Override

src/pins25/phase/LexAn.java

@@ -247,8 +247,37 @@ public class LexAn implements AutoCloseable {
                     return;
                 }
 
-                while (buffChar != '\n' && buffChar != -1) {
+                nextChar();
+                if (buffChar == '{') {
+                    int depth = 1;
+
                     nextChar();
+                    while (depth > 0) {
+                        switch (buffChar) {
+                            case '}':
+                                nextChar();
+                                if (buffChar != '/') continue;
+                                nextChar();
+                                if (buffChar != '/') continue;
+                                depth--;
+                                break;
+                            case '/':
+                                nextChar();
+                                if (buffChar != '/') continue;
+                                nextChar();
+                                if (buffChar != '{') continue;
+                                depth++;
+                                break;
+                            case -1:
+                                throw new Report.Error(currentLocation(), "Unterminated multiline comment");
+                            default:
+                                nextChar();
+                        }
+                    }
+                } else {
+                    while (buffChar != '\n' && buffChar != -1) {
+                        nextChar();
+                    }
                 }
 
                 nextToken();
@@ -319,7 +348,6 @@ public class LexAn implements AutoCloseable {
             case "let" -> Token.Symbol.LET;
             case "in" -> Token.Symbol.IN;
             case "end" -> Token.Symbol.END;
-            case "__LINE__" -> Token.Symbol.LINE;
             default -> null;
         };
     }
@@ -452,15 +480,6 @@ public class LexAn implements AutoCloseable {
             symbol = Token.Symbol.IDENTIFIER;
         }
 
-        if (symbol == Token.Symbol.LINE) {
-            buffToken = new Token(
-                    new Report.Location(startLocation, endLocation),
-                    Token.Symbol.INTCONST,
-                    Integer.toString(startLocation.begLine())
-            );
-            return;
-        }
-
         buffToken = new Token(
                 new Report.Location(startLocation, endLocation),
                 symbol,