Disable BailOnNoProfile in Generators/Asyncs

- BailOnNoProfile marks all code after it as dead
- if variable is used in a yield BUT incremented after BailOnNoProfile
- Jit would delete the increment and mark variable as constant
- interpreter would increment BUT JIT would reload as const
- would yield same value multiple times

Ideally should introduce Generator/Async specific version of BailOnNoProfile
That doesn't mark code after it as dead - but that would be larger work.
For now disable BailOnNoProfile for generators/Asyncs.

Author: rhuanjl

lib/Backend/IRBuilder.cpp

@@ -118,6 +118,11 @@ IRBuilder::DoBailOnNoProfile()
         return false;
     }
 
+    if (m_func->GetTopFunc()->GetJITFunctionBody()->IsCoroutine())
+    {
+        return false;
+    }
+
     return true;
 }