hg: amber/amber: dont add readResolve if readObject is implemented, plus adding more cases to test CheckReadResolveMethodTest

[vicente.romero at oracle.com]

Changeset: 87909b67c156
Author:    vromero
Date:      2018-06-14 14:59 -0700
URL:       http://hg.openjdk.java.net/amber/amber/rev/87909b67c156

dont add readResolve if readObject is implemented, plus adding more cases to test CheckReadResolveMethodTest

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/TypeEnter.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/util/Names.java
! test/langtools/tools/javac/datum/CheckReadResolveMethodTest.java