convert a bunch of DCHECKs to STATIC_ASSERT

src/ppc/code-stubs-ppc.cc

Index: src/ppc/code-stubs-ppc.cc
diff --git a/src/ppc/code-stubs-ppc.cc b/src/ppc/code-stubs-ppc.cc
index c18f0f7d79365c4ab4c68284c3959191bd6e73cb..d232b834b81cdf6fafb2949e5afb81209040260b 100644
--- a/src/ppc/code-stubs-ppc.cc
+++ b/src/ppc/code-stubs-ppc.cc
@@ -4212,7 +4212,7 @@ void NameDictionaryLookupStub::GeneratePositiveLookup(
     __ and_(scratch2, scratch1, scratch2);
 
     // Scale the index by multiplying by the element size.
-    DCHECK(NameDictionary::kEntrySize == 3);
+    STATIC_ASSERT(NameDictionary::kEntrySize == 3);
     // scratch2 = scratch2 * 3.
     __ ShiftLeftImm(ip, scratch2, Operand(1));
     __ add(scratch2, scratch2, ip);
@@ -4301,7 +4301,7 @@ void NameDictionaryLookupStub::Generate(MacroAssembler* masm) {
     __ and_(index, mask, r0);
 
     // Scale the index by multiplying by the entry size.
-    DCHECK(NameDictionary::kEntrySize == 3);
+    STATIC_ASSERT(NameDictionary::kEntrySize == 3);
     __ ShiftLeftImm(scratch, index, Operand(1));
     __ add(index, index, scratch);  // index *= 3.
 
@@ -5040,12 +5040,12 @@ static void CreateArrayDispatchOneArgument(MacroAssembler* masm,
   // sp[0] - last argument
   Label normal_sequence;
   if (mode == DONT_OVERRIDE) {
-    DCHECK(FAST_SMI_ELEMENTS == 0);
-    DCHECK(FAST_HOLEY_SMI_ELEMENTS == 1);
-    DCHECK(FAST_ELEMENTS == 2);
-    DCHECK(FAST_HOLEY_ELEMENTS == 3);
-    DCHECK(FAST_DOUBLE_ELEMENTS == 4);
-    DCHECK(FAST_HOLEY_DOUBLE_ELEMENTS == 5);
+    STATIC_ASSERT(FAST_SMI_ELEMENTS == 0);
+    STATIC_ASSERT(FAST_HOLEY_SMI_ELEMENTS == 1);
+    STATIC_ASSERT(FAST_ELEMENTS == 2);
+    STATIC_ASSERT(FAST_HOLEY_ELEMENTS == 3);
+    STATIC_ASSERT(FAST_DOUBLE_ELEMENTS == 4);
+    STATIC_ASSERT(FAST_HOLEY_DOUBLE_ELEMENTS == 5);
 
     // is the low bit set? If so, we are holey and that is good.
     __ andi(r0, r6, Operand(1));