much simpler implementation of constant tuple declarations

lib/core/macros.nim

@@ -81,8 +81,7 @@ type
     nnkState,
     nnkBreakState,
     nnkFuncDef,
-    nnkTupleConstr,
-    nnkConstTuple
+    nnkTupleConstr
 
   NimNodeKinds* = set[NimNodeKind]
   NimTypeKind* = enum  # some types are no longer used, see ast.nim
@@ -278,9 +277,9 @@ when defined(nimHasSymOwnerInMacro):
 when defined(nimHasInstantiationOfInMacro):
   proc isInstantiationOf*(instanceProcSym, genProcSym: NimNode): bool {.magic: "SymIsInstantiationOf", noSideEffect.}
     ## check if proc symbol is instance of the generic proc symbol
-    ## useful to check proc symbols against generic symbols 
+    ## useful to check proc symbols against generic symbols
     ## returned by `bindSym`
- 
+
 proc getType*(n: NimNode): NimNode {.magic: "NGetType", noSideEffect.}
   ## with 'getType' you can access the node's `type`:idx:. A Nim type is
   ## mapped to a Nim AST too, so it's slightly confusing but it means the same