Removed ssa pass. Do active ssa for vars.
Do active ssa for if.
Pass along meta-vars
Fix vars_deps and meta_vars for DeclareVar node
Fixed for blocks
Merge branch 'master' into no-ssa
Activa ssa after block
Active ssa for while, and some fixes
Kinda active ssa for exception handlers
Fixed constants codegen when they declared variables
Store vars in fun literal
Fixed pointerof
Fixed Struct#hash
Fixed void assignment
Fixed block arg active ssa. No longer assume "if @var" will make @var not nil until a next call happens.
Don't reuse vars when normalizing
Fixed activa ssa for calls and blocks
Some fixes
Smarter binding to nil variable
Some code fixes with the new type inference model