dart2js cps_ir: Seed type_propagation with constant bools from inference.

tests/compiler/dart2js/js_backend_cps_ir_control_flow_test.dart

Index: tests/compiler/dart2js/js_backend_cps_ir_control_flow_test.dart
diff --git a/tests/compiler/dart2js/js_backend_cps_ir_control_flow_test.dart b/tests/compiler/dart2js/js_backend_cps_ir_control_flow_test.dart
index cc37c089a8f62beb93079f0887623d7abba189f1..d3340b4cd07e709f0f9af94a49a1a1dd0960b49d 100644
--- a/tests/compiler/dart2js/js_backend_cps_ir_control_flow_test.dart
+++ b/tests/compiler/dart2js/js_backend_cps_ir_control_flow_test.dart
@@ -68,6 +68,7 @@ const TestEntry("""
 foo(a) { print(a); return a; }
 
 main() {
+ foo(false);
  if (foo(true)) {
    print(1);
  } else {
@@ -76,6 +77,7 @@ main() {
  print(3);
 }""", """
 function() {
+  V.foo(false);
   V.foo(true) ? P.print(1) : P.print(2);
   P.print(3);
 }"""),
@@ -83,6 +85,7 @@ const TestEntry("""
 foo(a) { print(a); return a; }
 
 main() {
+ foo(false);
  if (foo(true)) {
    print(1);
    print(1);
@@ -93,6 +96,7 @@ main() {
  print(3);
 }""", """
 function() {
+  V.foo(false);
   if (V.foo(true)) {
     P.print(1);
     P.print(1);