hg: code-tools/jtreg: 7902290: introduce error state of @requires properties

[jonathan.gibbons at oracle.com]

Changeset: 0bddbe290379
Author:    jjg
Date:      2018-10-04 11:44 -0700
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/0bddbe290379

7902290: introduce error state of @requires properties
Contributed-by: igor.ignatyev at oracle.com

! src/share/classes/com/sun/javatest/regtest/config/Expr.java
! src/share/classes/com/sun/javatest/regtest/config/RegressionContext.java
! test/extra-props/ExtraPropDefnsTest.gmk
+ test/extra-props/error/ErrorTest.java
+ test/extra-props/error/TEST.ROOT
+ test/extra-props/error/support/ExtraProps.java