RFR: 8183569: Assert the same limits are used in parse_xss and globals.hpp [v5]

[Ioi Lam]

> We have the following in Arguments::parse_xss():
> 
>   const julong min_ThreadStackSize = 0;
>   const julong max_ThreadStackSize = 1 * M;
>   const julong min_size = min_ThreadStackSize * K;
>   const julong max_size = max_ThreadStackSize * K;
> 
> which duplicates the min/max range specified in globals.hpp:
> 
>   product_pd(intx, ThreadStackSize, \
>           "Thread Stack Size (in Kbytes)") \
>           range(0, 1 * M) \
> 
> I added an API to query the min/max range of a flag, so parse_xss can be rewritten as
> 
>   const JVMTypedFlagLimit<intx>* limit = 
>     JVMFlagLimit::get_range_at(FLAG_MEMBER_ENUM(ThreadStackSize))->cast<intx>();
>   const julong min_size = limit->min() * K;
>   const julong max_size = limit->max() * K;

Ioi Lam has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  fixed optimized build

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2688/files
  - new: https://git.openjdk.java.net/jdk/pull/2688/files/77ca66c9..e28c07cc

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2688&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2688&range=03-04

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2688.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2688/head:pull/2688

PR: https://git.openjdk.java.net/jdk/pull/2688