element types
The error message when evaluateForEachExpression encounted an unknown
value of cty.DynamicPseudoType was not clear:
The given "for_each" argument value is unsuitable: "for_each" supports maps
and sets of strings, but you have provided a set containing type dynamic.
By moving the check for unknowns before the check for set element types,
the following error is returned instead:
"The "for_each" value depends on resource attributes that cannot be
determined until apply (...)"
Stop evaluating count and for each if they aren't set in the config.
Remove "Resource" from the function names, as they are also now used
with modules.
