Merge pull request #6021 from CarolEidt/LessConservativeGtObj

Less conservative gt obj

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

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

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

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

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

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

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

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