hg: amber/amber/langtools: manual merge

[maurizio.cimadamore at oracle.com]

Changeset: a27ee148c0e3
Author:    mcimadamore
Date:      2017-04-06 17:39 +0100
URL:       http://hg.openjdk.java.net/amber/amber/langtools/rev/a27ee148c0e3

manual merge

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Analyzer.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Infer.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Resolve.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/tree/JCTree.java