Make processor compatible with both old and new format INLINE/INLINE_ORIGIN

This is similar to the processor part of
https://chromium-review.googlesource.com/c/breakpad/breakpad/+/3232838/,
but added compatibility to process both old and new format of
INLINE/INLINE_ORIGIN records in symbol file.

Old INLINE format:
INLINE <inline_nest_level> <call_site_line> <origin_id>
[<address> <size>]+
New INLINE format:
INLINE <inline_nest_level> <call_site_line> <call_site_file_id>
<origin_id> [<address> <size>]+
Old INLINE_ORIGIN format:
INLINE_ORIGIN <origin_id> <file_id> <name>
New INLINE_ORIGIN format:
INLINE_ORIGIN <origin_id> <name>

Change-Id: I555d9747bfd44a1a95113b9946dcd509b7710876
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/3248433
Reviewed-by: Joshua Peraza <jperaza@chromium.org>

src/processor/testdata/symbols/linux_inline/BBA6FA10B8AAB33D00000000000000000/linux_inline.new.sym

@@ -0,0 +1,71 @@
+MODULE Linux x86_64 BBA6FA10B8AAB33D00000000000000000 linux_inline
+INFO CODE_ID 10FAA6BBAAB83DB3
+FILE 0 linux_inline.cpp
+FILE 1 a.cpp
+FILE 2 b.cpp
+FILE 3 c.cpp
+INLINE_ORIGIN 0 bar()
+INLINE_ORIGIN 1 foo()
+INLINE_ORIGIN 2 func()
+FUNC 15b30 6cf 0 main
+INLINE 0 42 1 1 15b45 6b1
+INLINE 1 39 2 0 15b72 684
+INLINE 2 32 3 2 15b83 673
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