The ARM_CVTS/ARM_CVTD macros have somewhat deceptive names: They
describe the source data type, not the target data type.

Clean up mcs build system

[jit] Avoid live range indexes overflowing for large basic blocks in the liveness pass. Fixes #26732.

 - otherwise we assert in sgen allocator
   in   sgen-gc.h:EMIT_TLS_ACCESS_NEXT_ADDR
   thru sgen-alloc.c:create_allocator
 - note that it is also disabled for ARM[64] and X86
   on android

This reverts commit 38f878ce.

This broke the build: http://wrench.mono-project.com/Wrench/WebServices/Download.aspx?workfile_id=3704132

These perform no conversions (other than any necessary single <-> double
conversions). They simply copy the raw data back and forth.

[runtime] Fixed allowing non-object complex arguments to cgt.un

Fix Windows build

It was broken by c731686f