Backport upstream patches to fix ICEs when using -fdebug-types-section.
treef801cfef9b17371c2f61471df84f2cdbc27f4922
drwxr-xr-x - gcc-4_6-mobile-vtable-security
drwxr-xr-x - gcc-4_6-mobile
drwxr-xr-x - gcc-4_6
drwxr-xr-x - gcc-4_6_2-mobile
drwxr-xr-x - gcc-4_6_3-mobile
drwxr-xr-x - gcc-4_7-integration
drwxr-xr-x - gcc-4_7-mobile-vtable-verification
drwxr-xr-x - gcc-4_7-mobile
drwxr-xr-x - gcc-4_7
drwxr-xr-x - gcc-4_8
drwxr-xr-x - integration
drwxr-xr-x - main