hg: jdk/jdk: 8214113: Switch expressions may have constant type and may be skipped during write

[jan.lahoda at oracle.com]

Changeset: c6df6671267e
Author:    jlahoda
Date:      2018-11-26 09:24 +0100
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/c6df6671267e

8214113: Switch expressions may have constant type and may be skipped during write
Summary: Switch expressions should not be compile-time constants.
Reviewed-by: mcimadamore

! src/jdk.compiler/share/classes/com/sun/tools/javac/comp/Attr.java
+ test/langtools/tools/javac/switchexpr/SwitchExpressionIsNotAConstant.java