Fix for regression when adding/removing methods and constructors

Change-Id: I5e923abfc93de2c1623d4e56a4a939bd0bd88060
diff --git a/src/com/google/doclava/MethodInfo.java b/src/com/google/doclava/MethodInfo.java
index c7e2304..6eb761a 100644
--- a/src/com/google/doclava/MethodInfo.java
+++ b/src/com/google/doclava/MethodInfo.java
@@ -712,7 +712,7 @@
   }
 
   public boolean matches(MethodInfo other) {
-    return signature().equals(other.signature());
+    return prettySignature().equals(other.prettySignature());
   }
 
   public boolean throwsException(ClassInfo exception) {