Directory Restructure (#1163)

* Move tests -> testing

* Directory restructure

* Update Cargo.toml during restructure

* Update Makefile during restructure

* Fix arbitrary path

consensus/state_processing/src/common/get_indexed_attestation.rs

@@ -0,0 +1,23 @@
+use super::get_attesting_indices;
+use crate::per_block_processing::errors::{AttestationInvalid as Invalid, BlockOperationError};
+use types::*;
+
+type Result<T> = std::result::Result<T, BlockOperationError<Invalid>>;
+
+/// Convert `attestation` to (almost) indexed-verifiable form.
+///
+/// Spec v0.11.1
+pub fn get_indexed_attestation<T: EthSpec>(
+    committee: &[usize],
+    attestation: &Attestation<T>,
+) -> Result<IndexedAttestation<T>> {
+    let attesting_indices = get_attesting_indices::<T>(committee, &attestation.aggregation_bits)?;
+
+    Ok(IndexedAttestation {
+        attesting_indices: VariableList::new(
+            attesting_indices.into_iter().map(|x| x as u64).collect(),
+        )?,
+        data: attestation.data.clone(),
+        signature: attestation.signature.clone(),
+    })
+}