Move all flags to CompilerOptions (first step to stop passing the compiler to

pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart

Index: pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
diff --git a/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart b/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
index 42f7138c0fc414b7964ba0fe9a9c27ecd077f790..7aef3a3cb2d2453b75a82d80ab0b89abe6d12db4 100644
--- a/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
+++ b/pkg/compiler/lib/src/js_emitter/program_builder/program_builder.dart
@@ -416,7 +416,7 @@ class ProgramBuilder {
               FunctionElement fn = member;
               functionType = fn.type;
             } else if (member.isGetter) {
-              if (_compiler.trustTypeAnnotations) {
+              if (_compiler.options.trustTypeAnnotations) {
                 GetterElement getter = member;
                 DartType returnType = getter.type.returnType;
                 if (returnType.isFunctionType) {
@@ -522,7 +522,7 @@ class ProgramBuilder {
   ///
   /// Returns a class that contains the fields of a class.
   Class buildFieldsHackForIncrementalCompilation(ClassElement element) {
-    assert(_compiler.hasIncrementalSupport);
+    assert(_compiler.options.hasIncrementalSupport);
 
     List<Field> instanceFields = _buildFields(element, false);
     js.Name name = namer.className(element);
@@ -694,7 +694,7 @@ class ProgramBuilder {
     return backend.isAccessibleByReflection(method) ||
         // During incremental compilation, we have to assume that reflection
         // *might* get enabled.
-        _compiler.hasIncrementalSupport;
+        _compiler.options.hasIncrementalSupport;
   }
 
   bool _methodCanBeApplied(FunctionElement method) {
@@ -704,7 +704,7 @@ class ProgramBuilder {
 
   // TODO(herhut): Refactor incremental compilation and remove method.
   Method buildMethodHackForIncrementalCompilation(FunctionElement element) {
-    assert(_compiler.hasIncrementalSupport);
+    assert(_compiler.options.hasIncrementalSupport);
     if (element.isInstanceMember) {
       return _buildMethod(element);
     } else {