• Russ Cox's avatar
    runtime: make scan of pointer-in-interface same as scan of pointer · 68aaf2cc
    Russ Cox authored
    The GC program describing a data structure sometimes trusts the
    pointer base type and other times does not (if not, the garbage collector
    must fall back on per-allocation type information stored in the heap).
    Make the scanning of a pointer in an interface do the same.
    This fixes a crash in a particular use of reflect.SliceHeader.
    
    Fixes #8004.
    
    LGTM=khr
    R=golang-codereviews, khr
    CC=0xe2.0x9a.0x9b, golang-codereviews, iant, r
    https://golang.org/cl/100470045
    68aaf2cc
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