[LLVMbugs] [Bug 19234] New: invalid selector resolution for type-erased (id) instance

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19234

            Bug ID: 19234
           Summary: invalid selector resolution for type-erased (id)
                    instance
           Product: clang
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: compnerd at compnerd.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 12273
  --> http://llvm.org/bugs/attachment.cgi?id=12273&action=edit
reduced.m

When multiple interfaces declare a similarly named selector taking differing
parameters, the first seen is taken to be the referenced one when dealing with
a type-erased (id) instance type.

The attached test case exemplifies the issue.  I would expect either a note
that the selector is ambiguous or even better for sema to realise that it is a
valid invocation.

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