Rename kDexCacheViaMethod to kRuntimeCall for HLoadClass/String.

The old name does not reflect the actual code anymore.

Test: testrunner.py --host
Change-Id: I2e13cf727bba9d901c4d3fc821bb526d38a775b8
diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc
index 65f3c72..dce81a4 100644
--- a/compiler/optimizing/code_generator.cc
+++ b/compiler/optimizing/code_generator.cc
@@ -508,7 +508,7 @@
 void CodeGenerator::CreateLoadClassRuntimeCallLocationSummary(HLoadClass* cls,
                                                               Location runtime_type_index_location,
                                                               Location runtime_return_location) {
-  DCHECK_EQ(cls->GetLoadKind(), HLoadClass::LoadKind::kDexCacheViaMethod);
+  DCHECK_EQ(cls->GetLoadKind(), HLoadClass::LoadKind::kRuntimeCall);
   DCHECK_EQ(cls->InputCount(), 1u);
   LocationSummary* locations = new (cls->GetBlock()->GetGraph()->GetArena()) LocationSummary(
       cls, LocationSummary::kCallOnMainOnly);
@@ -518,7 +518,7 @@
 }
 
 void CodeGenerator::GenerateLoadClassRuntimeCall(HLoadClass* cls) {
-  DCHECK_EQ(cls->GetLoadKind(), HLoadClass::LoadKind::kDexCacheViaMethod);
+  DCHECK_EQ(cls->GetLoadKind(), HLoadClass::LoadKind::kRuntimeCall);
   LocationSummary* locations = cls->GetLocations();
   MoveConstant(locations->GetTemp(0), cls->GetTypeIndex().index_);
   if (cls->NeedsAccessCheck()) {