Request for reviews (S): 7187454: stack overflow in C2 compiler thread on Solaris x86

[Vladimir Kozlov]

http://cr.openjdk.java.net/~kvn/7187454/webrev

7187454: stack overflow in C2 compiler thread on Solaris x86

Solaris C++ compiler use a lot of space on stack in fastdebug build to allocate 
on stack char[256] (from FormatBuffer used by err_msg()) for each assert. As 
result VM crashs with stack overflow in C2 compiler threads in recursive 
methods. It is triggered by changes in the recent 292 push which added err_msg() 
call in asserts in node.hpp file.

Added new FormatBufferResource class to use thread's resource area for error 
message buffer. Added new err_msg_res() to use new class and use it in C2 
instead of err_msg(). Removed workaround from makefile for C2 files.

Thanks,
Vladimir