hg: amber/amber: Consolidate XxxTypeDescriptor into inner classes of TypeDescriptor

[brian.goetz at oracle.com]

Changeset: 315c40fafba2
Author:    briangoetz
Date:      2018-06-27 15:27 -0400
URL:       http://hg.openjdk.java.net/amber/amber/rev/315c40fafba2

Consolidate XxxTypeDescriptor into inner classes of TypeDescriptor

! src/java.base/share/classes/java/lang/Class.java
! src/java.base/share/classes/java/lang/constant/ClassDesc.java
! src/java.base/share/classes/java/lang/constant/MethodTypeDesc.java
- src/java.base/share/classes/java/lang/invoke/FieldTypeDescriptor.java
! src/java.base/share/classes/java/lang/invoke/MethodType.java
- src/java.base/share/classes/java/lang/invoke/MethodTypeDescriptor.java
! src/java.base/share/classes/java/lang/invoke/TypeDescriptor.java
! test/jdk/java/lang/constant/TypeDescriptorTest.java