Qemu partial instr fix (#312)

* fix edges hashtable query bug in hook

* fmt

* clippy

libafl_qemu/src/helpers.rs

@@ -91,6 +91,7 @@ pub enum QemuInstrumentationFilter {
 }
 
 impl QemuInstrumentationFilter {
+    #[must_use]
     pub fn allowed(&self, addr: u64) -> bool {
         match self {
             QemuInstrumentationFilter::AllowList(l) => {

libafl_qemu/src/hooks.rs

@@ -8,7 +8,9 @@ pub use libafl_targets::{
     EDGES_MAP, EDGES_MAP_SIZE, MAX_EDGES_NUM,
 };
 
-use crate::helpers::*;
+use crate::helpers::{
+    QemuCmpLogHelper, QemuEdgeCoverageHelper, QemuHelperTuple, QemuSnapshotHelper,
+};
 
 #[derive(Default, Serialize, Deserialize)]
 pub struct QemuEdgesMapMetadata {