ART: Clean up interpreter includes

Move goto-interpreter special-cased Clang declarations to goto
implementation file. Separate out declarations into their own
headers. Tag the declarations with thread safety annotations.

Minor compile-time impact when running with -j1.

Change-Id: I03664d4e7dc6361b2510a8c9beb693d23a657c9d
Test: m test-art-host
Test: m ART_TEST_INTERPRETER=true test-art-host
diff --git a/runtime/interpreter/interpreter_mterp_impl.h b/runtime/interpreter/interpreter_mterp_impl.h
new file mode 100644
index 0000000..322df4e
--- /dev/null
+++ b/runtime/interpreter/interpreter_mterp_impl.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef ART_RUNTIME_INTERPRETER_INTERPRETER_MTERP_IMPL_H_
+#define ART_RUNTIME_INTERPRETER_INTERPRETER_MTERP_IMPL_H_
+
+#include "base/macros.h"
+#include "base/mutex.h"
+#include "dex_file.h"
+#include "jvalue.h"
+
+namespace art {
+
+class ShadowFrame;
+class Thread;
+
+namespace interpreter {
+
+// Mterp does not support transactions or access check, thus no templated versions.
+extern "C" bool ExecuteMterpImpl(Thread* self,
+                                 const DexFile::CodeItem* code_item,
+                                 ShadowFrame* shadow_frame,
+                                 JValue* result_register) SHARED_REQUIRES(Locks::mutator_lock_);
+
+}  // namespace interpreter
+}  // namespace art
+
+#endif  // ART_RUNTIME_INTERPRETER_INTERPRETER_MTERP_IMPL_H_