Make the latest clang compiler plugin build under clang 3.4. Fixes bug 1235053.
Make the latest clang compiler plugin build under clang 3.4. Fixes bug 1235053.

pelmers/dxr,jbradberry/dxr,pombredanne/dxr,pelmers/dxr,pelmers/dxr,pelmers/dxr,kleintom/dxr,jbradberry/dxr,jay-z007/dxr,kleintom/dxr,kleintom/dxr,jbradberry/dxr,jbradberry/dxr,jay-z007/dxr,jbradberry/dxr,pombredanne/dxr,jay-z007/dxr,kleintom/dxr,pombredanne/dxr,pelmers/dxr,pelmers/dxr,jay-z007/dxr,pombredanne/dxr,kleintom/dxr,kleintom/dxr,jay-z007/dxr,pombredanne/dxr,pelmers/dxr,jbradberry/dxr,kleintom/dxr,jay-z007/dxr,jbradberry/dxr,pombredanne/dxr,jay-z007/dxr,pombredanne/dxr