[PATCH] Fix some assignments of string literals to non-const char*

[Andrew Luo]

I've been trying to get the JDK to compile with the new /permissive- switch in VS2017 (https://devblogs.microsoft.com/cppblog/permissive-switch/) however there have been a few issues in various parts of the code.  There are a few issues in the hotspot code where we attempt to assign string literals to char* (non-const) variables (unnecessarily).  I took some time to fix some of these and attached a patch.  Let me know if you have any comments/feedback.

c:/Users/Andrew/Documents/mercurial/openjdk/jdk/test/hotspot/gtest/gtestMain.cpp(234): error C2440: 'initializing': cannot convert from 'const char [19]' to 'char *'
c:/Users/Andrew/Documents/mercurial/openjdk/jdk/test/hotspot/gtest/gtestMain.cpp(234): note: Conversion from string literal loses const qualifier (see /Zc:strictStrings)
c:/Users/Andrew/Documents/mercurial/openjdk/jdk/src/hotspot/os/windows/attachListener_windows.cpp(152): error C2664: 'AttachOperation::AttachOperation(AttachOperation &&)': cannot convert argument 1 from 'const char [9]' to 'char *'
c:/Users/Andrew/Documents/mercurial/openjdk/jdk/src/hotspot/os/windows/attachListener_windows.cpp(152): note: Conversion from string literal loses const qualifier (see /Zc:strictStrings)
c:/Users/Andrew/Documents/mercurial/openjdk/jdk/src/hotspot/os/windows/os_windows.cpp(204): error C2440: 'initializing': cannot convert from 'const char [5]' to 'char *'
c:/Users/Andrew/Documents/mercurial/openjdk/jdk/src/hotspot/os/windows/os_windows.cpp(204): note: Conversion from string literal loses const qualifier (see /Zc:strictStrings)
c:/Users/Andrew/Documents/mercurial/openjdk/jdk/src/hotspot/os/windows/os_windows.cpp(2214): error C2440: 'initializing': ...

Thanks,

-Andrew
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