Made ExpectedExceptio.isAnyExceptionExpected public. (#1443)

Author: jokaah

src/main/java/org/junit/rules/ExpectedException.java

@@ -245,6 +245,14 @@ public ExpectedException expectCause(Matcher<?> expectedCause) {
         return this;
     }
 
+    /**
+     * Check if any Exception is expected.
+     * @since 4.13
+     */
+    public final boolean isAnyExceptionExpected() {
+        return matcherBuilder.expectsThrowable();
+    }
+
     private class ExpectedExceptionStatement extends Statement {
         private final Statement next;
 
@@ -274,10 +282,6 @@ private void handleException(Throwable e) throws Throwable {
         }
     }
 
-    private boolean isAnyExceptionExpected() {
-        return matcherBuilder.expectsThrowable();
-    }
-
     private void failDueToMissingException() throws AssertionError {
         fail(missingExceptionMessage());
     }