add exception to recover()

[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9287]

runtime/Java/src/org/antlr/v4/runtime/ANTLRErrorStrategy.java

@@ -48,9 +48,11 @@ public interface ANTLRErrorStrategy {
 
 	/** Resynchronize the parser by consuming tokens until we find one
 	 *  in the resynchronization set--loosely the set of tokens that can follow
-	 *  the current rule.
+	 *  the current rule. The exception contains info you might want to
+	 *  use to recover better.
 	 */
-	void recover(BaseRecognizer recognizer);
+	void recover(BaseRecognizer recognizer,
+				 RecognitionException e);
 
 	/** Make sure that the current lookahead symbol is consistent with
 	 *  what were expecting at this point in the ATN. You can call this

runtime/Java/src/org/antlr/v4/runtime/DefaultANTLRErrorStrategy.java

@@ -103,7 +103,7 @@ public class DefaultANTLRErrorStrategy implements ANTLRErrorStrategy {
 	 *  token that the match() routine could not recover from.
 	 */
 	@Override
-	public void recover(BaseRecognizer recognizer) {
+	public void recover(BaseRecognizer recognizer, RecognitionException e) {
 //		System.out.println("recover in "+recognizer.getRuleInvocationStack()+
 //						   " index="+recognizer.getInputStream().index()+
 //						   ", lastErrorIndex="+