Support removing last statement from method body including indentation

Fixes #2001: Emptying method bodys via MethodCallExpr triggers UnsupportedOperationException
diff --git a/javaparser-core-testing/src/test/java/com/github/javaparser/printer/lexicalpreservation/LexicalPreservingPrinterTest.java b/javaparser-core-testing/src/test/java/com/github/javaparser/printer/lexicalpreservation/LexicalPreservingPrinterTest.java
index 7836d22..7c47c82 100644
--- a/javaparser-core-testing/src/test/java/com/github/javaparser/printer/lexicalpreservation/LexicalPreservingPrinterTest.java
+++ b/javaparser-core-testing/src/test/java/com/github/javaparser/printer/lexicalpreservation/LexicalPreservingPrinterTest.java
@@ -1169,4 +1169,15 @@
         assertEqualsNoEol("class X { X() {\n    testme();\n} private void testme() {} }", LexicalPreservingPrinter.print(compilationUnit));
     }
 
+    @Test
+    void issue2001() {
+        CompilationUnit compilationUnit = parse("class X {void blubb(){X.p(\"blaubb04\");}}");
+        LexicalPreservingPrinter.setup(compilationUnit);
+
+        compilationUnit
+                .findAll(MethodCallExpr.class)
+                .forEach(Node::removeForced);
+
+        assertEqualsNoEol("class X {void blubb(){}}", LexicalPreservingPrinter.print(compilationUnit));
+    }
 }
diff --git a/javaparser-core/src/main/java/com/github/javaparser/printer/lexicalpreservation/Difference.java b/javaparser-core/src/main/java/com/github/javaparser/printer/lexicalpreservation/Difference.java
index 9ce2f7d..783615d 100644
--- a/javaparser-core/src/main/java/com/github/javaparser/printer/lexicalpreservation/Difference.java
+++ b/javaparser-core/src/main/java/com/github/javaparser/printer/lexicalpreservation/Difference.java
@@ -388,7 +388,7 @@
             } else {
                 throw new UnsupportedOperationException("removed " + removed.getElement() + " vs " + originalElement);
             }
-        } else if (removed.isWhiteSpace()) {
+        } else if (removed.isWhiteSpace() || removed.getElement() instanceof CsmIndent || removed.getElement() instanceof CsmUnindent) {
             diffIndex++;
         } else if (originalElement.isWhiteSpace()) {
             originalIndex++;