introduce field: choose anchor corresponding to used fields without initializer (IDEA-97420)

java/java-tests/testData/refactoring/inplaceIntroduceField/anchor1.java

@@ -0,0 +1,8 @@
+import java.util.*;
+class ExtractFieldCompilationFailureTest {
+  private ArrayList aelements = new ArrayList();
+
+  public void test() {
+    aelements.it<caret>erator();
+  }
+}

java/java-tests/testData/refactoring/inplaceIntroduceField/anchor1_after.java

@@ -0,0 +1,9 @@
+import java.util.*;
+class ExtractFieldCompilationFailureTest {
+  private ArrayList aelements = new ArrayList();
+    private Iterator iterator;
+
+    public void test() {
+        iterator = aelements.iterator();
+    }
+}