* add `isNamedTuple`; make $(1, 2) be (1, 2) instead of leaking implementation detail (Field0: 1, Field1: 2)
fixes this: #8670 (comment) /cc @alehander42 @Vindaar @mratsim
* Note: isNamedTuple is useful in other places, eg #10010 (comment)
* move isNamedTuple to helpers.nim to avoid exposing new symbol to system.nim
* remove workaround in tests/vm/tissues.nim failing test now that #10218 was makes it work
* fixes#8794 : `Error: undeclared field: 'foo'` should show type (+ where type is defined) (hard to guess in generic code)
* fixes#9270: `--listFullPaths` not honored by `declared in foo.nim` messages
* fixes#9767: VM stacktrace doesn't honor --excessiveStackTrace:on
* fixes#9768: VM stacktrace misses column info, can lead to ambiguous or harder to read stacktraces
* refactors some col+1 code to col + ColOffset (self documents code)
* make getProcHeader show declared info location also for types and all routine kinds (including macros,templates) instead of just (rather arbitrarily) for iterator,proc,func,method
* --listFullPaths now is honored in more places
* fix typo system/except.nim => lib/system/excpt.nim
* remove substr(foo, 0) hack in compiler/vm.nim which seems old and not applicable anymore
This commit returns to a bit less strict checking of the number
of macro arguments, because some old immediate macros rely on a
behavior where even the arity of the macro is not being checked.
It may be better if such macros are just declared to use varargs[expr],
but this remains for another day.
