Fix some minor issues in comments

Signed-off-by: zhoujiaweii <[email protected]>

Author: zhoujiaweii

clippy_lints/src/reference.rs

@@ -83,7 +83,7 @@ impl LateLintPass<'_> for DerefAddrOf {
 
 /// Is this a `ManuallyDrop` reached through a union, and when is `DerefMut` called on it?
 enum ManuallyDropThroughUnion {
-    /// `ManuallyDrop` reached through a union and immediately explicitely dereferenced
+    /// `ManuallyDrop` reached through a union and immediately explicitly dereferenced
     Directly,
     /// `ManuallyDrop` reached through a union, and dereferenced later on
     Indirect,

clippy_utils/src/consts.rs

@@ -411,7 +411,7 @@ impl<'tcx> ConstEvalCtxt<'tcx> {
         }
     }
 
-    /// Attempts to evaluate the expression and returns both the value and whether it's dependant on
+    /// Attempts to evaluate the expression and returns both the value and whether it's dependent on
     /// other items.
     pub fn eval_with_source(&self, e: &Expr<'_>) -> Option<(Constant<'tcx>, ConstantSource)> {
         self.source.set(ConstantSource::Local);

clippy_utils/src/hir_utils.rs

@@ -1198,7 +1198,7 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> {
 
     pub fn hash_path(&mut self, path: &Path<'_>) {
         match path.res {
-            // constant hash since equality is dependant on inter-expression context
+            // constant hash since equality is dependent on inter-expression context
             // e.g. The expressions `if let Some(x) = foo() {}` and `if let Some(y) = foo() {}` are considered equal
             // even though the binding names are different and they have different `HirId`s.
             Res::Local(_) => 1_usize.hash(&mut self.s),