Emit CFI for x86 & x86_64 JNI compiler.

Now for host-side x86 & x86_64 ART, we are able to get complete stacktrace with even mixed C/C++ & Java stack frames.

Testing:
1. art/test/run-test --host --gdb [--64] --no-relocate 005
2. In gdb, run 'b art::Class_classForName' which is implementation of a Java native method, then 'r'
3. In gdb, run 'bt'. You should see stack frames down to main()

Change-Id: I2d17e9aa0f6d42d374b5362a15ea35a2fce96302
diff --git a/compiler/dex/quick/mir_to_lir.h b/compiler/dex/quick/mir_to_lir.h
index 2221bb5..4b8f794 100644
--- a/compiler/dex/quick/mir_to_lir.h
+++ b/compiler/dex/quick/mir_to_lir.h
@@ -1528,10 +1528,10 @@
                                     uint32_t type_idx, RegLocation rl_dest,
                                     RegLocation rl_src);
     /*
-     * @brief Generate the debug_frame FDE information if possible.
-     * @returns pointer to vector containg CFE information, or NULL.
+     * @brief Generate the eh_frame FDE information if possible.
+     * @returns pointer to vector containg FDE information, or NULL.
      */
-    virtual std::vector<uint8_t>* ReturnCallFrameInformation();
+    virtual std::vector<uint8_t>* ReturnFrameDescriptionEntry();
 
     /**
      * @brief Used to insert marker that can be used to associate MIR with LIR.