hg: amber/amber: more on checking for return inside a canonical constructor

[vicente.romero at oracle.com]

Changeset: ac78a894d47c
Author:    vromero
Date:      2019-10-10 16:32 -0400
URL:       https://hg.openjdk.java.net/amber/amber/rev/ac78a894d47c

more on checking for return inside a canonical constructor

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/AttrContext.java