Fix a typo that breaks the arugment size computation.

Change-Id: Id776dd6f546a04f157403d47cfa7311b77e8b589
diff --git a/src/object.cc b/src/object.cc
index 21f3537..8af1778 100644
--- a/src/object.cc
+++ b/src/object.cc
@@ -296,7 +296,7 @@
     char ch = shorty[i];
     if (ch == 'D' || ch == 'J') {
       num_bytes += 8;
-    } if (ch == 'L') {
+    } else if (ch == 'L') {
       // Argument is a reference or an array.  The shorty descriptor
       // does not distinguish between these types.
       num_bytes += sizeof(Object*);