add RAWAST back to DEBUG=3 [pr] (#9107)

tinygrad/codegen/kernel.py

@@ -669,6 +669,7 @@ class Kernel:
 
     if DEBUG >= 3:
       print(self.name)
+      if getenv("RAWAST"): print(self.ast)
       for i,(buf,st) in enumerate([(buf,st) for buf,st in zip(self.bufs, self.sts) if buf.op not in {Ops.CONST, Ops.VALID}]):
         print(f"{i:2d}: {str(st.shape):25s} {str(buf.src[0].dtype).replace('dtypes.',''):20s}", st.real_strides())
       print(self.applied_opts)