Rename Constant to ConstantValue and ConstExp to ConstantExpression.

sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart

Index: sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart b/sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart
index 288bee3a5113bed7a776e9aefefd64a47ac3f53d..d9fc2865689090dbc84f51569946e071dfa5f528 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/invoke_dynamic_specializers.dart
@@ -369,8 +369,8 @@ class TruncatingDivideSpecializer extends BinaryArithmeticSpecializer {
   bool isNotZero(HInstruction instruction, Compiler compiler) {
     if (!instruction.isConstantInteger()) return false;
     HConstant rightConstant = instruction;
-    IntConstant intConstant = rightConstant.constant;
-    int count = intConstant.value;
+    IntConstantValue intConstant = rightConstant.constant;
+    int count = intConstant.primitiveValue;
     return count != 0;
   }
 
@@ -419,8 +419,8 @@ abstract class BinaryBitOpSpecializer extends BinaryArithmeticSpecializer {
   bool argumentLessThan32(HInstruction instruction) {
     if (!instruction.isConstantInteger()) return false;
     HConstant rightConstant = instruction;
-    IntConstant intConstant = rightConstant.constant;
-    int count = intConstant.value;
+    IntConstantValue intConstant = rightConstant.constant;
+    int count = intConstant.primitiveValue;
     return count >= 0 && count <= 31;
   }