Revert "Refactor SourceInfo into Source."

This reverts commit 4ce024bcff99bb154f44a73f4cf6201a0fe75917.
diff --git a/lib/ExecutionEngine/Android.mk b/lib/ExecutionEngine/Android.mk
index 855d055..78850dd 100644
--- a/lib/ExecutionEngine/Android.mk
+++ b/lib/ExecutionEngine/Android.mk
@@ -24,7 +24,6 @@
 
 libbcc_executionengine_SRC_FILES := \
   BCCContext.cpp \
-  BCCContextImpl.cpp \
   Compiler.cpp \
   FileHandle.cpp \
   GDBJIT.cpp \
@@ -37,7 +36,7 @@
   ScriptCached.cpp \
   ScriptCompiled.cpp \
   Sha1Helper.cpp \
-  Source.cpp
+  SourceInfo.cpp
 
 
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