tree a10b33456ae68fe7119eab37ab80ab0feca267d8
parent 0a5a1ff782129cdc3e85e2e2c0835aa40ec7258a
author Than McIntosh <thanm@google.com> 1526922976 -0400
committer Than McIntosh <thanm@google.com> 1527594584 +0000

gollvm: insure that //line directives work correctly

Clean up the code that handles debug location meta-data to
insure that Go's //line directives work properly. This required
insuring that if an expression had no usable debug location we
use the debug location associated with its enclosing statement,
and keeping track of file changes within a function using the
DILexicalBlockFile pseudo-scope.

Change-Id: Ib72ce00f457ee8699fc15afc6d008a6ec16af1e8
Reviewed-on: https://go-review.googlesource.com/113723
Reviewed-by: Cherry Zhang <cherryyz@google.com>