Various performance improvements.

Performance had regressed due to verify object and method invocation changes.
Avoid trampolines for static calls in same class.
Various inlining changes.
Make verify object something that's only compiled-in in debug builds.

Change-Id: Ia261a52232c3b10667c668f8adfadc0da3048bc5
diff --git a/src/oat/runtime/arm/context_arm.cc b/src/oat/runtime/arm/context_arm.cc
index 814e649..7b45bc2a7 100644
--- a/src/oat/runtime/arm/context_arm.cc
+++ b/src/oat/runtime/arm/context_arm.cc
@@ -70,9 +70,9 @@
 }
 
 void ArmContext::SetGPR(uint32_t reg, uintptr_t value) {
-  CHECK_LT(reg, kNumberOfCoreRegisters);
-  CHECK_NE(gprs_[reg], &gZero); // Can't overwrite this static value since they are never reset.
-  CHECK(gprs_[reg] != NULL);
+  DCHECK_LT(reg, kNumberOfCoreRegisters);
+  DCHECK_NE(gprs_[reg], &gZero); // Can't overwrite this static value since they are never reset.
+  DCHECK(gprs_[reg] != NULL);
   *gprs_[reg] = value;
 }