cps-ir: Implement boolean conversion in and use it to implement '&&', '||', and '?:'.

pkg/compiler/lib/src/js_backend/codegen/glue.dart

Index: pkg/compiler/lib/src/js_backend/codegen/glue.dart
diff --git a/pkg/compiler/lib/src/js_backend/codegen/glue.dart b/pkg/compiler/lib/src/js_backend/codegen/glue.dart
index 8459ab938e6c17e9a720363ddf700acafe030810..26d5a75df2a7b2759b435bc2b22e79d9d7efb644 100644
--- a/pkg/compiler/lib/src/js_backend/codegen/glue.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen/glue.dart
@@ -19,6 +19,7 @@ class Glue {
   final Compiler _compiler;
 
   JavaScriptBackend get _backend => _compiler.backend;
+
   CodeEmitterTask get _emitter => _backend.emitter;
   Namer get _namer => _backend.namer;
 
@@ -28,6 +29,10 @@ class Glue {
     return _emitter.constantReference(value);
   }
 
+  reportInternalError(String message) {
+    _compiler.internalError(_compiler.currentElement, message);
+  }
+
   js.Expression elementAccess(Element element) {
     return _namer.elementAccess(element);
   }
@@ -35,7 +40,6 @@ class Glue {
   String safeVariableName(String name) {
     return _namer.safeVariableName(name);
   }
-
   ClassElement get listClass => _compiler.listClass;
 
 }