fix few typos

compiler/rustc_infer/src/infer/combine.rs

@@ -191,7 +191,7 @@ impl<'infcx, 'tcx> InferCtxt<'infcx, 'tcx> {
     ///
     /// This also tests if the given const `ct` contains an inference variable which was previously
     /// unioned with `target_vid`. If this is the case, inferring `target_vid` to `ct`
-    /// would result in an infinite type as we continously replace an inference variable
+    /// would result in an infinite type as we continuously replace an inference variable
     /// in `ct` with `ct` itself.
     ///
     /// This is especially important as unevaluated consts use their parents generics.

compiler/rustc_infer/src/infer/nll_relate/mod.rs

@@ -279,7 +279,7 @@ where
     /// Relate a type inference variable with a value type. This works
     /// by creating a "generalization" G of the value where all the
     /// lifetimes are replaced with fresh inference values. This
-    /// genearlization G becomes the value of the inference variable,
+    /// generalization G becomes the value of the inference variable,
     /// and is then related in turn to the value. So e.g. if you had
     /// `vid = ?0` and `value = &'a u32`, we might first instantiate
     /// `?0` to a type like `&'0 u32` where `'0` is a fresh variable,