Add support for CallKind::kCallOnMainAndSlowPath

Some of the intrinsics call on both the main and slowpath. This patch
adds support for such a CallKind and marks the intrinsics accordingly.

This will be exercised by a later patch that refactors all the runtime
calls to use InvokeRuntime().

Please note that without this patch, the calls to ValidateInvokeRuntime()
exercised by the following patches would fail.

Change-Id: I450571b8b47280a004b714996189ba6db13fb57d
diff --git a/compiler/optimizing/intrinsics_arm64.cc b/compiler/optimizing/intrinsics_arm64.cc
index 987d3f8..c9309fd 100644
--- a/compiler/optimizing/intrinsics_arm64.cc
+++ b/compiler/optimizing/intrinsics_arm64.cc
@@ -1409,7 +1409,7 @@
 
 void IntrinsicLocationsBuilderARM64::VisitStringIndexOf(HInvoke* invoke) {
   LocationSummary* locations = new (arena_) LocationSummary(invoke,
-                                                            LocationSummary::kCallOnMainOnly,
+                                                            LocationSummary::kCallOnMainAndSlowPath,
                                                             kIntrinsified);
   // We have a hand-crafted assembly stub that follows the runtime calling convention. So it's
   // best to align the inputs accordingly.
@@ -1429,7 +1429,7 @@
 
 void IntrinsicLocationsBuilderARM64::VisitStringIndexOfAfter(HInvoke* invoke) {
   LocationSummary* locations = new (arena_) LocationSummary(invoke,
-                                                            LocationSummary::kCallOnMainOnly,
+                                                            LocationSummary::kCallOnMainAndSlowPath,
                                                             kIntrinsified);
   // We have a hand-crafted assembly stub that follows the runtime calling convention. So it's
   // best to align the inputs accordingly.
@@ -1447,7 +1447,7 @@
 
 void IntrinsicLocationsBuilderARM64::VisitStringNewStringFromBytes(HInvoke* invoke) {
   LocationSummary* locations = new (arena_) LocationSummary(invoke,
-                                                            LocationSummary::kCallOnMainOnly,
+                                                            LocationSummary::kCallOnMainAndSlowPath,
                                                             kIntrinsified);
   InvokeRuntimeCallingConvention calling_convention;
   locations->SetInAt(0, LocationFrom(calling_convention.GetRegisterAt(0)));
@@ -1504,7 +1504,7 @@
 
 void IntrinsicLocationsBuilderARM64::VisitStringNewStringFromString(HInvoke* invoke) {
   LocationSummary* locations = new (arena_) LocationSummary(invoke,
-                                                            LocationSummary::kCallOnMainOnly,
+                                                            LocationSummary::kCallOnMainAndSlowPath,
                                                             kIntrinsified);
   InvokeRuntimeCallingConvention calling_convention;
   locations->SetInAt(0, LocationFrom(calling_convention.GetRegisterAt(0)));