This fixes an issue introduced by
https://github.com/llvm/llvm-project/pull/84150, where failing to pop
compound scope, function scope info, and decl context after a failed
statement could lead to an inconsistent internal state.
Without this patch, clang-repl incorrectly pass some tests when there's
error occured.
Signed-off-by: Jun Zhang <jun@junz.org>
Differential Revision: https://reviews.llvm.org/D130422
