Also modified some of the rust tests so that they are applicable to aarch64.

Added support for generation of unscaled immediate memory offsets.
Fixed compilation errors.
Modified calling of the c 'exit' function in tests so that it will expect a int<64> instead of an int<32>.
Modified formating of various IR things (like Value's and Instructions) to be more easillly readable.

# Conflicts:
#	tests/ir_macros.rs
#	tests/lib.rs
#	tests/test_compiler/test_alloc.rs
#	tests/test_compiler/test_binop.rs
#	tests/test_compiler/test_call.rs
#	tests/test_compiler/test_controlflow.rs
#	tests/test_compiler/test_exception.rs
#	tests/test_compiler/test_floatingpoint.rs
#	tests/test_compiler/test_global.rs
#	tests/test_compiler/test_int.rs
#	tests/test_compiler/test_mem_inst.rs
#	tests/test_compiler/test_pre_instsel.rs
#	tests/test_compiler/test_regalloc.rs
#	tests/test_compiler/test_thread.rs
#	tests/test_ir/test_ir.rs
#	tests/test_jit/test_rpython.py
#	tests/test_runtime/mod.rs

merge with develop: fix bugs about allocation, and stack alignment, temporarily disable register allocation validation (has bugs)

See merge request !5

sequence

troubles

normal destination. The call instruction (machine code) has two successors, a normal cont
block which contains the branch to the normal destination, and the exceptional
cont

macro.

should check src/dest, if src and dst is the same, it doesnt kill
anything)

immiediate number. Richards benchmark runs.

as scale in memory op