Introduce CompilationDatabase::getAllCompileCommands() that returns all
compile commands of the database and expose it via the libclang API.

llvm-svn: 169226
diff --git a/clang/tools/libclang/CXCompilationDatabase.cpp b/clang/tools/libclang/CXCompilationDatabase.cpp
index 7bd319a..8567d31 100644
--- a/clang/tools/libclang/CXCompilationDatabase.cpp
+++ b/clang/tools/libclang/CXCompilationDatabase.cpp
@@ -59,6 +59,17 @@
   return 0;
 }
 
+CXCompileCommands
+clang_CompilationDatabase_getAllCompileCommands(CXCompilationDatabase CDb) {
+  if (CompilationDatabase *db = static_cast<CompilationDatabase *>(CDb)) {
+    const std::vector<CompileCommand> CCmd(db->getAllCompileCommands());
+    if (!CCmd.empty())
+      return new AllocatedCXCompileCommands( CCmd );
+  }
+
+  return 0;
+}
+
 void
 clang_CompileCommands_dispose(CXCompileCommands Cmds)
 {