Add counters to track JIT inline cache hit rate and code cache patch counts.

Also did some WITH_JIT_TUNING cleanup.

Change-Id: I8bb2d681a06b0f2af1f976a007326825a88cea38
diff --git a/vm/compiler/Compiler.c b/vm/compiler/Compiler.c
index 4b65e82..f003692 100644
--- a/vm/compiler/Compiler.c
+++ b/vm/compiler/Compiler.c
@@ -577,7 +577,7 @@
             do {
                 CompilerWorkOrder work = workDequeue();
                 dvmUnlockMutex(&gDvmJit.compilerLock);
-#if defined(JIT_STATS)
+#if defined(WITH_JIT_TUNING)
                 u8 startTime = dvmGetRelativeTimeUsec();
 #endif
                 /*
@@ -622,7 +622,7 @@
                     }
                 }
                 free(work.info);
-#if defined(JIT_STATS)
+#if defined(WITH_JIT_TUNING)
                 gDvmJit.jitTime += dvmGetRelativeTimeUsec() - startTime;
 #endif
                 dvmLockMutex(&gDvmJit.compilerLock);