hg: jdk/submit: 8209633: Avoid creating WeakEntry wrappers when looking up cached MethodType

[claes.redestad at oracle.com]

Changeset: 2c4aaa0d56f4
Author:    redestad
Date:      2018-08-20 14:25 +0200
URL:       http://hg.openjdk.java.net/jdk/submit/rev/2c4aaa0d56f4

8209633: Avoid creating WeakEntry wrappers when looking up cached MethodType
Reviewed-by: plevart, mchung

! src/java.base/share/classes/java/lang/invoke/MethodType.java