decompiler: fixed incorrect line numbers in dumped mapping

src/org/jetbrains/java/decompiler/main/collectors/BytecodeSourceMapper.java

@@ -97,7 +97,7 @@ public class BytecodeSourceMapper {
     buffer.append("Lines mapping:").appendLineSeparator();
     Map<Integer, Integer> sorted = new TreeMap<Integer, Integer>(linesMapping);
     for (Entry<Integer, Integer> entry : sorted.entrySet()) {
-      buffer.append(entry.getKey()).append(" <-> ").append(entry.getValue()).appendLineSeparator();
+      buffer.append(entry.getKey()).append(" <-> ").append(entry.getValue()+ offset_total + 1).appendLineSeparator();
     }
   }
 

testData/results/TestClassSimpleBytecodeMapping.dec

@@ -58,12 +58,12 @@ class 'pkg/TestClassSimpleBytecodeMapping' {
 }
 
 Lines mapping:
-12 <-> 2
-14 <-> 3
-17 <-> 5
-21 <-> 8
-22 <-> 9
-23 <-> 10
-25 <-> 12
-26 <-> 13
-31 <-> 18
+12 <-> 5
+14 <-> 6
+17 <-> 8
+21 <-> 11
+22 <-> 12
+23 <-> 13
+25 <-> 15
+26 <-> 16
+31 <-> 21