RUN: grep '^ADDR:' %s | sed -s 's/ADDR: //' \
RUN:    | llvm-symbolizer -obj="%p/Inputs/missing_pdb.exe" 2>%t.err \
RUN:    | FileCheck %s
RUN: FileCheck --check-prefix=ERROR %s < %t.err

ADDR: 0x401000
ADDR: 0x401001

llvm-symbolizer should print one error and two unknown line info records.

ERROR: LLVMSymbolizer: error reading file: {{.*}}: {{N|n}}o such file or directory
ERROR-NOT: error reading file

CHECK: ??
CHECK: ??:0:0
CHECK: ??
CHECK: ??:0:0