CodeCleanup: eliminate unnecessary base class and make the children unvirtual.

src/mips64/deoptimizer-mips64.cc

Index: src/mips64/deoptimizer-mips64.cc
diff --git a/src/mips64/deoptimizer-mips64.cc b/src/mips64/deoptimizer-mips64.cc
index 9d7dcb9e5a6b1ddeb4eb6ed81b1ef9834fa52536..2b55695af84d00d8f9d639ca0047b42be4dbd065 100644
--- a/src/mips64/deoptimizer-mips64.cc
+++ b/src/mips64/deoptimizer-mips64.cc
@@ -131,7 +131,7 @@ bool Deoptimizer::HasAlignmentPadding(JSFunction* function) {
 
 // This code tries to be close to ia32 code so that any changes can be
 // easily ported.
-void Deoptimizer::EntryGenerator::Generate() {
+void Deoptimizer::TableEntryGenerator::Generate() {
   GeneratePrologue();
 
   // Unlike on ARM we don't save all the registers, just the useful ones.