Java control flow: Don't allow extracting method if there's a potential side effect on the local variables in the case of exception thrown (IDEA-79444, IDEA-159916)

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

@@ -0,0 +1,17 @@
+class A {
+    void foo() {
+        String s = "";
+        try {
+            <selection>s = "a";
+            bar();</selection>
+            s = "b";
+        } catch (Exception e) {
+            System.out.println(e);
+        }
+        System.out.println(s);
+    }
+
+    void bar() throws Exception {
+        if (true) throw new Exception();
+    }
+}