Merge pull request #1371 from adityamandaleeka/gcsuspension_2

Implement GC suspension for Linux [WIP]

diff --cc CMakeLists.txt
Simple merge

diff --cc src/debug/ee/debugger.cpp
Simple merge

diff --cc src/pal/inc/pal.h
Simple merge

diff --cc src/pal/src/config.h.in
Simple merge

diff --cc src/pal/src/configure.cmake
Simple merge

diff --cc src/vm/excep.cpp
Simple merge