Remove the last remnants of the TranscendentalCache.

src/mips/full-codegen-mips.cc

Index: src/mips/full-codegen-mips.cc
diff --git a/src/mips/full-codegen-mips.cc b/src/mips/full-codegen-mips.cc
index 74b3807882733a4540c742f6a5dfd72f071ad534..997aa3e3d97a98cd3aa1393a46fda7cbfb35be4a 100644
--- a/src/mips/full-codegen-mips.cc
+++ b/src/mips/full-codegen-mips.cc
@@ -3748,14 +3748,11 @@ void FullCodeGenerator::EmitStringCompare(CallRuntime* expr) {
 
 
 void FullCodeGenerator::EmitMathLog(CallRuntime* expr) {
-  // Load the argument on the stack and call the stub.
-  TranscendentalCacheStub stub(TranscendentalCache::LOG,
-                               TranscendentalCacheStub::TAGGED);
+  // Load the argument on the stack and call the runtime function.
   ZoneList<Expression*>* args = expr->arguments();
   ASSERT(args->length() == 1);
   VisitForStackValue(args->at(0));
-  __ mov(a0, result_register());  // Stub requires parameter in a0 and on tos.
-  __ CallStub(&stub);
+  __ CallRuntime(Runtime::kMath_log, 1);
   context()->Plug(v0);
 }