Reapply "Add TypeVariable object on runtime to support reflection on type variables." and "Fix type…

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

Index: sdk/lib/_internal/compiler/implementation/ssa/builder.dart
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/builder.dart b/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
index d0f2f48610764b7140fea47f01d1e98f818a5709..8a62abc8fb4438b50fe843cb06d7b74444141010 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
@@ -2846,7 +2846,7 @@ class SsaBuilder extends ResolvedVisitor implements Visitor {
       bool first = true;
       List<String> templates = <String>[];
       for (DartType argument in interface.typeArguments) {
-        templates.add(rti.getTypeRepresentation(argument, (variable) {
+        templates.add(rti.getTypeRepresentationWithHashes(argument, (variable) {
           HInstruction runtimeType = addTypeVariableReference(variable);
           inputs.add(runtimeType);
         }));
@@ -3544,7 +3544,7 @@ class SsaBuilder extends ResolvedVisitor implements Visitor {
 
     List<HInstruction> inputs = <HInstruction>[];
 
-    String template = rti.getTypeRepresentation(argument, (variable) {
+    String template = rti.getTypeRepresentationWithHashes(argument, (variable) {
       inputs.add(addTypeVariableReference(variable));
     });