Re-generate known Terraform versions (#211)

* go generate ./schema

* schema: Add comment to explain CoreModuleSchemaForConstraint

Author: radeksimko

schema/core_schema.go

@@ -52,6 +52,14 @@ func CoreModuleSchemaForVersion(v *version.Version) (*schema.BodySchema, error)
 	return nil, NoCompatibleSchemaErr{Version: ver}
 }
 
+// CoreModuleSchemaForConstraint returns schema relevant to the given constraint.
+//
+// Since the underlying implementation relies on knowing exact version and
+// that is the "happy path" when exact version is known, we pre-generate
+// known available versions, to be able to convert from constraints to
+// versions easily. This means that e.g. `~> 1` translates to latest
+// known version.
+//
 //go:generate go run ../internal/versiongen -w ./versions_gen.go
 func CoreModuleSchemaForConstraint(vc version.Constraints) (*schema.BodySchema, error) {
 	for _, v := range terraformVersions {