Frontend → AST Relation

File in include/clang/Frontend	Includes file in include/clang/AST
ASTConsumers.h	ASTDumperUtils.h
ASTUnit.h	ASTContext.h
CompilerInstance.h	ASTConsumer.h
FrontendAction.h	ASTConsumer.h
FrontendOptions.h	ASTDumperUtils.h
LayoutOverrideSource.h	ExternalASTSource.h