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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169226 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/libclang.exports b/tools/libclang/libclang.exports
index 4495b66..ee34edc 100644
--- a/tools/libclang/libclang.exports
+++ b/tools/libclang/libclang.exports
@@ -250,6 +250,7 @@
 clang_CompilationDatabase_fromDirectory
 clang_CompilationDatabase_dispose
 clang_CompilationDatabase_getCompileCommands
+clang_CompilationDatabase_getAllCompileCommands
 clang_CompileCommands_dispose
 clang_CompileCommands_getSize
 clang_CompileCommands_getCommand