invert if: fix psi replacement (IDEA-174966)

java/java-tests/testData/codeInsight/invertIfCondition/afterNestedIf4.java

@@ -1,8 +1,7 @@
 // "Invert 'if' condition" "true"
 class Main {
     boolean method(boolean a, boolean b) {
-        for (int i = 1; i < 10; i++)
-        {
+        for (int i = 1; i < 10; i++) {
             if (b) {
                 continue;
             }

java/java-tests/testData/codeInsight/invertIfCondition/afterNestedIf5.java

@@ -0,0 +1,14 @@
+// "Invert 'if' condition" "true"
+class Main {
+    Object foo(boolean b1, boolean b2) {
+        if (b1) {
+            return null;
+        } else {
+            if (b2) {
+                return null;
+            }
+            return "a";
+        }
+
+    }
+}

java/java-tests/testData/codeInsight/invertIfCondition/beforeNestedIf5.java

@@ -0,0 +1,12 @@
+// "Invert 'if' condition" "true"
+class Main {
+    Object foo(boolean b1, boolean b2) {
+        if (b1) {
+            return null;
+        } else if (!b<caret>2) {
+            return "a";
+        }
+        
+        return null;
+    }
+}