Enhancement: MultiExpr in the same domain

[hikettei]

• Post-MultiExpr (Completely Equivalent Domain)
• Post-MultiExpr (where subdomain is the equivalent)
• Index-Component-Fusion
• Add the following transform pattern to EXPR:
• More Restrict Schedule test in nn or ajit (e.g.: Embedding in one kernel)

val_445[(_gid0+0)] = (val_456_0^((val_445[(_gid0+0)]*32768)+(uint32_t)((float)val_445[(_gid0+0)]*7.6293945e-6)));
->
float _tmp_0 = val_445[_gid0+0];
val_445[_gid0+0] = (val_456_0^((_tmp_0*32768)+(uint32_t)((float)_tmp_0*7.6293945e-6)));
``