Upgrade hcl to v2

Signed-off-by: Patrick Van Stee <patrick@vanstee.me>

vendor/github.com/zclconf/go-cty/cty/convert/conversion_dynamic.go

@@ -0,0 +1,33 @@
+package convert
+
+import (
+	"github.com/zclconf/go-cty/cty"
+)
+
+// dynamicFixup deals with just-in-time conversions of values that were
+// input-typed as cty.DynamicPseudoType during analysis, ensuring that
+// we end up with the desired output type once the value is known, or
+// failing with an error if that is not possible.
+//
+// This is in the spirit of the cty philosophy of optimistically assuming that
+// DynamicPseudoType values will become the intended value eventually, and
+// dealing with any inconsistencies during final evaluation.
+func dynamicFixup(wantType cty.Type) conversion {
+	return func(in cty.Value, path cty.Path) (cty.Value, error) {
+		ret, err := Convert(in, wantType)
+		if err != nil {
+			// Re-wrap this error so that the returned path is relative
+			// to the caller's original value, rather than relative to our
+			// conversion value here.
+			return cty.NilVal, path.NewError(err)
+		}
+		return ret, nil
+	}
+}
+
+// dynamicPassthrough is an identity conversion that is used when the
+// target type is DynamicPseudoType, indicating that the caller doesn't care
+// which type is returned.
+func dynamicPassthrough(in cty.Value, path cty.Path) (cty.Value, error) {
+	return in, nil
+}