strengthen the test and correct minor errors

Author: SchrodingerZhu

libc/src/__support/HashTable/generic/bitmask_impl.inc

@@ -6,7 +6,6 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "src/__support/HashTable/bitmask.h"
 #include "src/__support/common.h"
 #include "src/__support/endian.h"
 
@@ -52,7 +51,7 @@ struct Group {
     return {data.value};
   }
 
-  // Load a group of control words from an arbitary address.
+  // Load a group of control words from an aligned address.
   LIBC_INLINE static Group load_aligned(const void *__restrict addr) {
     return *static_cast<const Group *>(addr);
   }

libc/src/__support/HashTable/sse2/bitmask_impl.inc

@@ -23,7 +23,7 @@ struct Group {
     return {_mm_loadu_si128(static_cast<const __m128i *>(addr))};
   }
 
-  // Load a group of control words from an arbitary address.
+  // Load a group of control words from an aligned address.
   LIBC_INLINE static Group load_aligned(const void *__restrict addr) {
     return {_mm_load_si128(static_cast<const __m128i *>(addr))};
   }

libc/test/src/search/hsearch_test.cpp

@@ -60,6 +60,11 @@ TEST(LlvmLibcHSearchTest, GrowFromZero) {
     ASSERT_NE(inserted, static_cast<ENTRY *>(nullptr));
     ASSERT_EQ(inserted->key, &search_data[i]);
   }
+  for (size_t i = sizeof(search_data) - 1; i != 0; --i) {
+    ASSERT_EQ(
+        LIBC_NAMESPACE::hsearch({&search_data[i - 1], nullptr}, FIND)->data,
+        reinterpret_cast<void *>(i - 1));
+  }
 
   LIBC_NAMESPACE::hdestroy();
 }