Handle compound assignment expressions (i += j) as lvalues, which is
permitted in C++ but not in C. Fixes PR6900. Clang can now handle all
of Boost.Lambda's regression tests.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102170 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed