Revert "fixes #22913; fixes #12985 differently push-ing pragma exportc genera… (#22941)"

This reverts commit d566d21730.

compiler/pragmas.nim

@@ -1307,7 +1307,7 @@ proc implicitPragmas*(c: PContext, sym: PSym, info: TLineInfo,
   if sym != nil and sym.kind != skModule:
     for it in c.optionStack:
       let o = it.otherPragmas
-      if not o.isNil:
+      if not o.isNil and sfFromGeneric notin sym.flags: # see issue #12985
         pushInfoContext(c.config, info)
         var i = 0
         while i < o.len:

compiler/seminst.nim

@@ -386,17 +386,11 @@ proc generateInstance(c: PContext, fn: PSym, pt: TIdTable,
     entry.compilesId = c.compilesContextId
     addToGenericProcCache(c, fn, entry)
     c.generics.add(makeInstPair(fn, entry))
-    # bug #12985 bug #22913
-    # TODO: use the context of the declaration of generic functions instead
-    # TODO: consider fixing options as well
-    let otherPragmas = c.optionStack[^1].otherPragmas
-    c.optionStack[^1].otherPragmas = nil
     if n[pragmasPos].kind != nkEmpty:
       pragma(c, result, n[pragmasPos], allRoutinePragmas)
     if isNil(n[bodyPos]):
       n[bodyPos] = copyTree(getBody(c.graph, fn))
     instantiateBody(c, n, fn.typ.n, result, fn)
-    c.optionStack[^1].otherPragmas = otherPragmas
     sideEffectsCheck(c, result)
     if result.magic notin {mSlice, mTypeOf}:
       # 'toOpenArray' is special and it is allowed to return 'openArray':

tests/pragmas/tpush.nim

@@ -38,42 +38,3 @@ proc main(): void =
   {.push staticBoundChecks: on.}
 
 main()
-
-
-proc timnFoo[T](obj: T) {.noSideEffect.} = discard # BUG
-
-{.push exportc.}
-proc foo1() =
-  var s1 = "bar"
-  timnFoo(s1)
-  var s2 = @[1]
-  timnFoo(s2)
-{.pop.}
-
-
-block: # bug #22913
-  block:
-    type r = object
-
-    template std[T](x: T) =
-      let ttt {.used.} = x
-      result = $ttt
-
-    proc bar[T](x: T): string =
-      std(x)
-
-    {.push exportc: "$1".}
-    proc foo(): r =
-      let s = bar(123)
-    {.pop.}
-
-    discard foo()
-
-  block:
-    type r = object
-    {.push exportc: "$1".}
-    proc foo2(): r =
-      let s = $result
-    {.pop.}
-
-    discard foo2()