Extract binding logic for objects derived from ProcessingEnvironment to ProcessingEnvironmentModule, so it's not done in ComponentProcessor.

RELNOTES=n/a

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=194098451
diff --git a/java/dagger/internal/codegen/ProcessingEnvironmentModule.java b/java/dagger/internal/codegen/ProcessingEnvironmentModule.java
new file mode 100644
index 0000000..7869555
--- /dev/null
+++ b/java/dagger/internal/codegen/ProcessingEnvironmentModule.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2018 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dagger.internal.codegen;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import com.google.googlejavaformat.java.filer.FormattingFiler;
+import dagger.Binds;
+import dagger.Module;
+import dagger.Provides;
+import dagger.Reusable;
+import dagger.internal.codegen.ProcessingEnvironmentModule.ElementsModule;
+import java.util.Map;
+import javax.annotation.processing.Filer;
+import javax.annotation.processing.Messager;
+import javax.annotation.processing.ProcessingEnvironment;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.util.Elements;
+import javax.lang.model.util.Types;
+
+/** Bindings that depend on the {@link ProcessingEnvironment}. */
+@Module(includes = ElementsModule.class)
+final class ProcessingEnvironmentModule {
+
+  private final ProcessingEnvironment processingEnvironment;
+
+  ProcessingEnvironmentModule(ProcessingEnvironment processingEnvironment) {
+    this.processingEnvironment = checkNotNull(processingEnvironment);
+  }
+
+  @Provides
+  @ProcessingOptions
+  Map<String, String> processingOptions() {
+    return processingEnvironment.getOptions();
+  }
+
+  @Provides
+  Messager messager() {
+    return processingEnvironment.getMessager();
+  }
+
+  @Provides
+  @Reusable // to avoid noting about disabling the formatter more than once
+  Filer filer(CompilerOptions compilerOptions, Messager messager) {
+    if (compilerOptions.headerCompilation()) {
+      return processingEnvironment.getFiler();
+    } else {
+      return new FormattingFiler(processingEnvironment.getFiler());
+    }
+  }
+
+  @Provides
+  Types types() {
+    return processingEnvironment.getTypeUtils();
+  }
+
+  @Provides
+  SourceVersion sourceVersion() {
+    return processingEnvironment.getSourceVersion();
+  }
+
+  @Provides
+  DaggerElements daggerElements() {
+    return new DaggerElements(processingEnvironment);
+  }
+
+  @Provides
+  @Reusable // to avoid parsing options more than once
+  CompilerOptions compilerOptions(DaggerElements elements) {
+    return CompilerOptions.create(processingEnvironment, elements);
+  }
+
+  @Module
+  interface ElementsModule {
+    @Binds
+    Elements elements(DaggerElements daggerElements);
+  }
+}