hg: jdk8u/jdk8u: 8202557: OpenJDK fails to start in Windows 7 and 8.1 after upgrading compiler to VC 2017

[rob.mckenna at oracle.com]

Changeset: 1c0d5a15ab4c
Author:    kevinw
Date:      2018-10-29 14:43 -0700
URL:       http://hg.openjdk.java.net/jdk8u/jdk8u/rev/1c0d5a15ab4c

8202557: OpenJDK fails to start in Windows 7 and 8.1 after upgrading compiler to VC 2017
Reviewed-by: tbell, erikj

! common/autoconf/basics.m4
! common/autoconf/generated-configure.sh
! common/autoconf/spec.gmk.in
! common/autoconf/toolchain_windows.m4