RFR: 8242209: Increase web native thread stack size for x86 mode

[Guru Hb]

On Mon, 6 Apr 2020 11:57:54 GMT, Arun Joseph <ajoseph at openjdk.org> wrote:

> CLoop interpreter used in 32-bit Windows uses 87 KB of stack space each time CLoop::execute() is called. For web native
> threads which has a default stack size of 320 KB, a Stack Overflow Error is raised just after two calls to execute()
> function. While 64-bit windows has a default stack size of 1 MB.  Fix: Increase the thread stack size of web native
> threads for x86 to 1 MB.

Looks good to me, Tested on Windows with test case added in JBS.

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Marked as reviewed by ghb (Reviewer).

PR: https://git.openjdk.java.net/jfx/pull/159