Relax representation requirement in FrameStates.

test/unittests/compiler/instruction-selector-unittest.h

Index: test/unittests/compiler/instruction-selector-unittest.h
diff --git a/test/unittests/compiler/instruction-selector-unittest.h b/test/unittests/compiler/instruction-selector-unittest.h
index 4f2cdbc0ffcdab1602311ca2b1ca908c8dec7c3f..7605cbdbb0200afe860681ea78919647f87d4590 100644
--- a/test/unittests/compiler/instruction-selector-unittest.h
+++ b/test/unittests/compiler/instruction-selector-unittest.h
@@ -147,6 +147,10 @@ class InstructionSelectorTest : public TestWithContext, public TestWithZone {
       return ToConstant(operand).ToFloat32();
     }
 
+    double ToFloat64(const InstructionOperand* operand) const {
+      return ToConstant(operand).ToFloat64();
+    }
+
     int32_t ToInt32(const InstructionOperand* operand) const {
       return ToConstant(operand).ToInt32();
     }
@@ -155,6 +159,10 @@ class InstructionSelectorTest : public TestWithContext, public TestWithZone {
       return ToConstant(operand).ToInt64();
     }
 
+    Handle<HeapObject> ToHeapObject(const InstructionOperand* operand) const {
+      return ToConstant(operand).ToHeapObject();
+    }
+
     int ToVreg(const InstructionOperand* operand) const {
       if (operand->IsConstant()) return operand->index();
       EXPECT_EQ(InstructionOperand::UNALLOCATED, operand->kind());