Make art::HCompare support boolean, byte, short and char inputs.

Also extend tests covering the IntegerSignum, LongSignum,
IntegerCompare and LongCompare intrinsics and their
translation into an art::HCompare instruction.

Bug: 27629913
Change-Id: I0afc75ee6e82602b01ec348bbb36a08e8abb8bb8
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 2b54ff8..34fd9ff 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -3672,6 +3672,10 @@
   LocationSummary* locations =
       new (GetGraph()->GetArena()) LocationSummary(compare, LocationSummary::kNoCall);
   switch (compare->InputAt(0)->GetType()) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+    case Primitive::kPrimShort:
+    case Primitive::kPrimChar:
     case Primitive::kPrimInt:
     case Primitive::kPrimLong: {
       locations->SetInAt(0, Location::RequiresRegister());
@@ -3702,6 +3706,10 @@
   Primitive::Type type = compare->InputAt(0)->GetType();
   Condition less_cond;
   switch (type) {
+    case Primitive::kPrimBoolean:
+    case Primitive::kPrimByte:
+    case Primitive::kPrimShort:
+    case Primitive::kPrimChar:
     case Primitive::kPrimInt: {
       __ LoadImmediate(out, 0);
       __ cmp(left.AsRegister<Register>(),