decompiler: major line numbers fixes

testData/src/pkg/TestThrowException.java

@@ -0,0 +1,19 @@
+package pkg;
+
+import java.lang.Override;
+import java.lang.Runnable;
+
+public class TestThrowException {
+  Runnable r;
+  public TestThrowException(int a) {
+    if (a > 0) {
+      throw new IllegalArgumentException("xxx");
+    }
+    r = new Runnable() {
+      @Override
+      public void run() {
+        int a = 5;
+      }
+    };
+  }
+}