inplace introduce field/constant: restore anchors if they were changed during template

java/java-tests/testData/refactoring/inplaceIntroduceField/anchor.java

@@ -0,0 +1,5 @@
+class Test {
+  void foo(boolean opaque) {
+    opaq<caret>ue
+  }
+}

java/java-tests/testData/refactoring/inplaceIntroduceField/anchor_after.java

@@ -0,0 +1,8 @@
+class Test {
+
+    private boolean opaque;
+
+    void foo(boolean opaque) {
+        this.opaque = opaque;
+    }
+}