hg: amber/amber: refactoring: relocating checks to attribution phase

[vicente.romero at oracle.com]

Changeset: f358ec606422
Author:    vromero
Date:      2020-02-27 22:56 -0500
URL:       https://hg.openjdk.java.net/amber/amber/rev/f358ec606422

refactoring: relocating checks to attribution phase

! src/jdk.compiler/share/classes/com/sun/tools/javac/code/Type.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/TypeEnter.java
! test/langtools/tools/javac/sealed/SealedCompilationTests.java