got rid of tyPureObject; broke bootstrapping; use generated C code

lib/system/assign.nim

@@ -62,7 +62,7 @@ proc genericAssignAux(dest, src: Pointer, mt: PNimType, shallow: bool) =
     var dstseq = cast[PGenericSeq](dst)
     dstseq.len = seq.len
     dstseq.space = seq.len
-  of tyObject, tyTuple, tyPureObject:
+  of tyObject, tyTuple:
     # we don't need to copy m_type field for tyObject, as they are equal anyway
     genericAssignAux(dest, src, mt.node, shallow)
   of tyArray, tyArrayConstr:
@@ -121,7 +121,7 @@ proc objectInit(dest: Pointer, typ: PNimType) =
     var pint = cast[ptr PNimType](dest)
     pint[] = typ
     objectInitAux(dest, typ.node)
-  of tyTuple, tyPureObject:
+  of tyTuple:
     objectInitAux(dest, typ.node)
   of tyArray, tyArrayConstr:
     for i in 0..(typ.size div typ.base.size)-1:
@@ -149,7 +149,7 @@ proc genericReset(dest: Pointer, mt: PNimType) =
   case mt.Kind
   of tyString, tyRef, tySequence:
     unsureAsgnRef(cast[ppointer](dest), nil)
-  of tyObject, tyTuple, tyPureObject:
+  of tyObject, tyTuple:
     # we don't need to reset m_type field for tyObject
     genericResetAux(dest, mt.node)
   of tyArray, tyArrayConstr:

lib/system/gc.nim

@@ -301,7 +301,7 @@ proc forAllChildrenAux(dest: Pointer, mt: PNimType, op: TWalkOp) =
     case mt.Kind
     of tyRef, tyString, tySequence: # leaf:
       doOperation(cast[ppointer](d)[], op)
-    of tyObject, tyTuple, tyPureObject:
+    of tyObject, tyTuple:
       forAllSlotsAux(dest, mt.node, op)
     of tyArray, tyArrayConstr, tyOpenArray:
       for i in 0..(mt.size div mt.base.size)-1:

lib/system/hti.nim

@@ -27,7 +27,7 @@ type # This should be he same as ast.TTypeKind
     tyOrdinal,
     tyArray,
     tyObject,
-    tyTuple,
+    tyTuple,             # WARNING: The compiler uses tyTuple for pure objects!
     tySet,
     tyRange,
     tyPtr, tyRef,
@@ -37,8 +37,7 @@ type # This should be he same as ast.TTypeKind
     tyPointer, tyOpenArray,
     tyString, tyCString, tyForward,
     tyInt, tyInt8, tyInt16, tyInt32, tyInt64,
-    tyFloat, tyFloat32, tyFloat64, tyFloat128,
-    tyPureObject # signals that object has no `n_type` field
+    tyFloat, tyFloat32, tyFloat64, tyFloat128
 
   TNimNodeKind = enum nkNone, nkSlot, nkList, nkCase
   TNimNode {.codegenType, final.} = object

lib/system/repr.nim

@@ -201,7 +201,7 @@ when not defined(useNimRtl):
     case typ.kind
     of tySet: reprSetAux(result, p, typ)
     of tyArray: reprArray(result, p, typ, cl)
-    of tyTuple, tyPureObject: reprRecord(result, p, typ, cl)
+    of tyTuple: reprRecord(result, p, typ, cl)
     of tyObject: 
       var t = cast[ptr PNimType](p)[]
       reprRecord(result, p, t, cl)
@@ -251,7 +251,7 @@ when not defined(useNimRtl):
       cl: TReprClosure
     initReprClosure(cl)
     result = ""
-    if typ.kind in {tyObject, tyPureObject, tyTuple, tyArray, tySet}:
+    if typ.kind in {tyObject, tyTuple, tyArray, tySet}:
       reprAux(result, p, typ, cl)
     else:
       var p = p