extract method object: wrap if/loop bodies in {} when needed (IDEA-92156)

java/java-tests/testData/refactoring/extractMethodObject/multipleExitPoints/ConditionalExitWithoutCodeBlock.java

@@ -0,0 +1,10 @@
+class Test {
+  void foo(String[] args){
+    for (String aArg : args) {
+      <selection>boolean a = aArg == null;
+      if (aArg == null) continue;</selection>
+
+      System.out.println(aArg + a);
+    }
+  }
+}

java/java-tests/testData/refactoring/extractMethodObject/multipleExitPoints/ConditionalExitWithoutCodeBlock.java.after

@@ -0,0 +1,39 @@
+class Test {
+  void foo(String[] args){
+    for (String aArg : args) {
+        Inner inner = new Inner(aArg).invoke();
+        if (inner.is()) continue;
+        boolean a = inner.isA();
+
+      System.out.println(aArg + a);
+    }
+  }
+
+    private class Inner {
+        private boolean myResult;
+        private String aArg;
+        private boolean a;
+
+        public Inner(String aArg) {
+            this.aArg = aArg;
+        }
+
+        boolean is() {
+            return myResult;
+        }
+
+        public boolean isA() {
+            return a;
+        }
+
+        public Inner invoke() {
+            a = aArg == null;
+            if (aArg == null) {
+                myResult = true;
+                return this;
+            }
+            myResult = false;
+            return this;
+        }
+    }
+}