Merge pull request #13245 from pgavlin/NoExpandIndex

Use a smaller expansion of GT_INDEX in MinOpts.

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

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

diff --cc src/jit/lsraarm64.cpp
Simple merge

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