RFR: JDK-8253239: Disable VS warning C4307 [v3]

[Matthias Baesken]

> hello, this fixes the build when using VS2017. VS2019 does not have the issue as far as I know.
> failure was
> 
>> ./test/hotspot/gtest/utilities/test_align.cpp(96): error C2220: warning treated as error - no 'object' file generated
>> ./test/hotspot/gtest/utilities/test_align.cpp(156): note: see reference to function template instantiation 'void
>> static_test_alignments<T,A>(void)' being compiled with
>> [
>> T=int64_t,
>> A=uint8_t
>> ]
>> ./test/hotspot/gtest/utilities/test_align.cpp(162): note: see reference to function template instantiation 'void
>> test_alignments<int64_t,uint8_t>(void)' being compiled ./test/hotspot/gtest/utilities/test_align.cpp(96): warning
>> C4307: '+': integral constant overflow
>>
>>
> 
> This might be related to an issue fixed at least in some versions of VS2019 , that is discussed here :
> 
> https://developercommunity.visualstudio.com/content/problem/211134/unsigned-integer-overflows-in-constexpr-functionsa.html
> 
> https://bugs.openjdk.java.net/browse/JDK-8253239

Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:

  JDK-8253239: Disable VS warning C4307
  
  Co-authored-by: Erik Joelsson <37597443+erikj79 at users.noreply.github.com>

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/237/files
  - new: https://git.openjdk.java.net/jdk/pull/237/files/4e82edcb..af48bb31

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=237&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=237&range=01-02

  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/237.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/237/head:pull/237

PR: https://git.openjdk.java.net/jdk/pull/237