Extract DiagnosticReporter implementation from Compiler.

pkg/compiler/lib/src/native/ssa.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of native;
 
 final RegExp nativeRedirectionRegExp = new RegExp(r'^[a-zA-Z][a-zA-Z_$0-9]*$');
 
 void handleSsaNative(SsaBuilder builder, Expression nativeBody) {
   Compiler compiler = builder.compiler;
   FunctionElement element = builder.work.element;
   NativeEmitter nativeEmitter = builder.nativeEmitter;
   JavaScriptBackend backend = builder.backend;
+  DiagnosticReporter reporter = compiler.reporter;
 
   HInstruction convertDartClosure(ParameterElement  parameter,
                                   FunctionType type) {
     HInstruction local = builder.localsHandler.readLocal(parameter);
     ConstantValue arityConstant =
         builder.constantSystem.createInt(type.computeArity());
     HInstruction arity = builder.graph.addConstant(arityConstant, compiler);
     // TODO(ngeoffray): For static methods, we could pass a method with a
     // defined arity.
     Element helper = backend.getClosureConverter();
     builder.pushInvokeStatic(nativeBody, helper, [local, arity]);
     HInstruction closure = builder.pop();
     return closure;
   }
 
   // Check which pattern this native method follows:
   // 1) foo() native;
   //      hasBody = false
   // 2) foo() native "bar";
   //      No longer supported, this is now done with @JSName('foo') and case 1.
   // 3) foo() native "return 42";
   //      hasBody = true
   bool hasBody = false;
   assert(element.isNative);
   String nativeMethodName = element.fixedBackendName;
   if (nativeBody != null) {
     LiteralString jsCode = nativeBody.asLiteralString();
     String str = jsCode.dartString.slowToString();
     if (nativeRedirectionRegExp.hasMatch(str)) {
-      compiler.internalError(
+      reporter.internalError(
           nativeBody, "Deprecated syntax, use @JSName('name') instead.");
     }
     hasBody = true;
   }
 
   if (!hasBody) {
     nativeEmitter.nativeMethods.add(element);
   }
 
   FunctionSignature parameters = element.functionSignature;
@@ skipping 19 matching lines @@
 
     String foreignParameters = arguments.join(',');
     String nativeMethodCall;
     if (element.kind == ElementKind.FUNCTION) {
       nativeMethodCall = '$receiver$nativeMethodName($foreignParameters)';
     } else if (element.kind == ElementKind.GETTER) {
       nativeMethodCall = '$receiver$nativeMethodName';
     } else if (element.kind == ElementKind.SETTER) {
       nativeMethodCall = '$receiver$nativeMethodName = $foreignParameters';
     } else {
-      builder.compiler.internalError(element,
+      builder.reporter.internalError(element,
                                      'Unexpected kind: "${element.kind}".');
     }
 
     builder.push(
         new HForeignCode(
             // TODO(sra): This could be cached.  The number of templates should
             // be proportional to the number of native methods, which is bounded
             // by the dart: libraries.
             js.js.uncachedExpressionTemplate(nativeMethodCall),
             backend.dynamicType,
             inputs, effects: new SideEffects()));
     // TODO(johnniwinther): Provide source information.
     builder
         .close(new HReturn(builder.pop(), null))
         .addSuccessor(builder.graph.exit);
   } else {
     if (parameters.parameterCount != 0) {
-      compiler.internalError(nativeBody,
+      reporter.internalError(nativeBody,
           'native "..." syntax is restricted to '
           'functions with zero parameters.');
     }
     LiteralString jsCode = nativeBody.asLiteralString();
     builder.push(new HForeignCode.statement(
         js.js.statementTemplateYielding(
             new js.LiteralStatement(jsCode.dartString.slowToString())),
         <HInstruction>[],
         new SideEffects(),
         null,
         backend.dynamicType));
   }
 }