[cfe-commits] Patch to fix warning on qualified typedef with 'unused' attribute

[Jason Haslam]

This test case incorrectly warns because the diagnostic fails to look through the qualifier when it checks the typedef's 'unused' attribute:
1 namespace NS { typedef int Int __attribute__((unused)); }
2 void f() {
3   NS::Int i; // bogus unused variable warning
4 }

The attached patch contains a fix and test case.

Jason

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