surround with runnable: check if name unique; start inplace rename; place caret after

java/java-tests/testData/codeInsight/generation/surroundWith/java/CommentAsFirstRunnableSurroundStatement.java

@@ -1,6 +1,6 @@
 class Test {
     void foo() {
-        <selection>// This is comment"
+        <selection><caret>// This is comment"
             int i = 1;</selection>
     }
 }

java/java-tests/testData/codeInsight/generation/surroundWith/java/CommentAsFirstRunnableSurroundStatement_after.java

@@ -1,6 +1,6 @@
 class Test {
     void foo() {
-        Runnable <caret><selection>runnable</selection> = new Runnable() {
+        <caret>Runnable runnable = new Runnable() {
             public void run() {
                 // This is comment"
                 int i = 1;