Refactor compiled_method.h .

Move LinkerPatch to compiler/linker/linker_patch.h .
Move SrcMapElem to compiler/debug/src_map_elem.h .
Introduce compiled_method-inl.h to reduce the number
of `#include`s in compiled_method.h .

Test: m test-art-host-gtest
Test: testrunner.py --host
Change-Id: Id211cdf94a63ad265bf4709f1a5e06dffbe30f64
diff --git a/compiler/optimizing/code_generator_x86_64.h b/compiler/optimizing/code_generator_x86_64.h
index f5fa86b..8e8e695 100644
--- a/compiler/optimizing/code_generator_x86_64.h
+++ b/compiler/optimizing/code_generator_x86_64.h
@@ -424,7 +424,7 @@
 
   void MoveFromReturnRegister(Location trg, Primitive::Type type) OVERRIDE;
 
-  void EmitLinkerPatches(ArenaVector<LinkerPatch>* linker_patches) OVERRIDE;
+  void EmitLinkerPatches(ArenaVector<linker::LinkerPatch>* linker_patches) OVERRIDE;
 
   void PatchJitRootUse(uint8_t* code,
                        const uint8_t* roots_data,
@@ -586,9 +586,9 @@
   static constexpr int32_t kDummy32BitOffset = 256;
 
  private:
-  template <LinkerPatch (*Factory)(size_t, const DexFile*, uint32_t, uint32_t)>
+  template <linker::LinkerPatch (*Factory)(size_t, const DexFile*, uint32_t, uint32_t)>
   static void EmitPcRelativeLinkerPatches(const ArenaDeque<PatchInfo<Label>>& infos,
-                                          ArenaVector<LinkerPatch>* linker_patches);
+                                          ArenaVector<linker::LinkerPatch>* linker_patches);
 
   // Labels for each block that will be compiled.
   Label* block_labels_;  // Indexed by block id.