convert a bunch of DCHECKs to STATIC_ASSERT

src/elements-kind.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ELEMENTS_KIND_H_
 #define V8_ELEMENTS_KIND_H_
 
+#include "src/base/macros.h"
 #include "src/checks.h"
 
 namespace v8 {
 namespace internal {
 
 enum ElementsKind {
   // The "fast" kind for elements that only contain SMI values. Must be first
   // to make it possible to efficiently check maps for this kind.
   FAST_SMI_ELEMENTS,
   FAST_HOLEY_SMI_ELEMENTS,
@@ skipping 90 matching lines @@
 }
 
 
 inline bool IsFixedTypedArrayElementsKind(ElementsKind kind) {
   return kind >= FIRST_FIXED_TYPED_ARRAY_ELEMENTS_KIND &&
       kind <= LAST_FIXED_TYPED_ARRAY_ELEMENTS_KIND;
 }
 
 
 inline bool IsFastElementsKind(ElementsKind kind) {
-  DCHECK(FIRST_FAST_ELEMENTS_KIND == 0);
+  STATIC_ASSERT(FIRST_FAST_ELEMENTS_KIND == 0);
   return kind <= FAST_HOLEY_DOUBLE_ELEMENTS;
 }
 
 
 inline bool IsTransitionElementsKind(ElementsKind kind) {
   return IsFastElementsKind(kind) || IsFixedTypedArrayElementsKind(kind) ||
          kind == FAST_SLOPPY_ARGUMENTS_ELEMENTS;
 }
 
 
@@ skipping 111 matching lines @@
 
 inline bool IsTransitionableFastElementsKind(ElementsKind from_kind) {
   return IsFastElementsKind(from_kind) &&
       from_kind != TERMINAL_FAST_ELEMENTS_KIND;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ELEMENTS_KIND_H_