Clean the project (#57)

include/AST/Utility.h

@@ -0,0 +1,23 @@
+#include "clang/AST/Decl.h"
+
+namespace clice {
+
+/// is this decl a definition?
+bool isDefinition(const clang::Decl* decl);
+
+/// Return the decl where it is instantiated from. If could be a template decl
+/// or a member of a class template. If the decl is a full specialization, return
+/// itself.
+const clang::NamedDecl* instantiatedFrom(const clang::NamedDecl* decl);
+
+/// To response go-to-type-definition request. Some decls actually have a type
+/// for example the result of `typeof(var)` is the type of `var`. This function
+/// returns the type for the decl if any.
+clang::QualType typeForDecl(const clang::NamedDecl* decl);
+
+/// Get the underlying decl for a type if any.
+const clang::NamedDecl* declForType(clang::QualType type);
+
+void dumpInclude(clang::SourceManager& srcMgr, clang::SourceLocation loc);
+
+}  // namespace clice