Fix various lints

Author: brancz

pkg/cache/lru/lru.go

@@ -83,15 +83,15 @@ func (c *LRU[K, V]) Get(key K) (value V, ok bool) {
 		return e.Value.(entry[K, V]).value, true
 	}
 	c.metrics.misses.Inc()
-	return
+	return value, ok
 }
 
 // Peek returns the key value (or undefined if not found) without updating the "recently used"-ness of the key.
 func (c *LRU[K, V]) Peek(key K) (value V, ok bool) {
 	if e, ok := c.items[key]; ok {
 		return e.Value.(entry[K, V]).value, true
 	}
-	return
+	return value, ok
 }
 
 // Remove removes the provided key from the cache.

pkg/query/flamegraph_arrow.go

@@ -1592,19 +1592,19 @@ func newChildBuf() childBuf {
 	}
 }
 
-func (b childBuf) reset() {
+func (b *childBuf) reset() {
 	b.values = b.values[:0]
 	b.indexes = b.indexes[:0]
 }
 
-func (b childBuf) reserve(n int) {
+func (b *childBuf) reserve(n int) {
 	if cap(b.values) < n {
 		b.values = make([]int64, 0, n)
 		b.indexes = make([]int, 0, n)
 	}
 }
 
-func (b childBuf) append(value int64, index int) {
+func (b *childBuf) append(value int64, index int) {
 	b.indexes = append(b.indexes, index)
 	b.values = append(b.values, value)
 }