Merge pull request #2860 from LLITCHEV/gc-stress

Fix for bugs related to clasifying System.TypedReference - issue #2854.

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

diff --cc src/jit/codegencommon.cpp
Simple merge

diff --cc src/jit/codegenlinear.h
Simple merge

diff --cc src/jit/codegenxarch.cpp
Simple merge

diff --cc src/jit/compiler.cpp
Simple merge

diff --cc src/jit/ee_il_dll.cpp
Simple merge

diff --cc src/jit/lclvars.cpp
Simple merge

diff --cc src/jit/lowerxarch.cpp
Simple merge

diff --cc src/jit/morph.cpp
Simple merge

diff --cc src/vm/argdestination.h
Simple merge

diff --cc src/vm/callingconvention.h
Simple merge

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

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

diff --cc src/vm/methodtable.h
Simple merge

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