decompiler: major line numbers fixes

testData/results/TestDebugSymbols.dec

@@ -2,10 +2,40 @@ package pkg;
 
 class TestDebugSymbols {
    private int m() {
-      String text = "text";
-      long prolonged = 42L;
-      float decimated = (float)prolonged / 10.0F;
-      double doubled = (double)(2.0F * decimated);
-      return (text + ":" + prolonged + ":" + decimated + ":" + doubled).length();
+      String text = "text";// 21
+      long prolonged = 42L;// 22
+      float decimated = (float)prolonged / 10.0F;// 23
+      double doubled = (double)(2.0F * decimated);// 24
+      return (text + ":" + prolonged + ":" + decimated + ":" + doubled).length();// 25
    }
 }
+
+class 'pkg/TestDebugSymbols' {
+   method 'm ()I' {
+      0      4
+      2      4
+      3      5
+      6      5
+      8      6
+      9      6
+      b      6
+      c      6
+      e      7
+      11      7
+      12      7
+      13      7
+      20      8
+      29      8
+      33      8
+      3d      8
+      40      8
+      43      8
+   }
+}
+
+Lines mapping:
+21 <-> 5
+22 <-> 6
+23 <-> 7
+24 <-> 8
+25 <-> 9