extract method: inline output variable if it is returned right after creation ( IDEA-54490 )

java/java-tests/testData/refactoring/extractMethod/CodeDuplicatesWithOutputValue_after.java

@@ -12,8 +12,7 @@ class C {
     }
 
     private List newMethod(Object[] array) {
-        List l1 = new ArrayList(Arrays.asList(array));
-        return l1;
+        return new ArrayList(Arrays.asList(array));
     }
 
     String[] getObjects() {

java/java-tests/testData/refactoring/extractMethod/FinalOutputVar_after.java

@@ -7,7 +7,6 @@ class C {
     }
 
     private int newMethod() {
-        final int i = 128;
-        return i;
+        return 128;
     }
 }

java/java-tests/testData/refactoring/extractMethod/InlineCreated2ReturnLocalVariablesOnly.java

@@ -0,0 +1,8 @@
+class Test {
+    void foo() {
+      <selection>int j = 0;
+      int i = 0;
+      j = 9;</selection>
+      System.out.println(i);
+    }
+}

java/java-tests/testData/refactoring/extractMethod/InlineCreated2ReturnLocalVariablesOnly_after.java

@@ -0,0 +1,13 @@
+class Test {
+    void foo() {
+        int i = newMethod();
+      System.out.println(i);
+    }
+
+    private int newMethod() {
+        int j = 0;
+        int i = 0;
+        j = 9;
+        return i;
+    }
+}