Add change note.

Max Schaefer · Max Schaefer · commit 1f68a32cdcfa · 2020-06-22T09:22:47.000+01:00
diff --git a/change-notes/2020-06-19-call-graph.md b/change-notes/2020-06-19-call-graph.md
@@ -0,0 +1,2 @@
+lgtm,codescanning
+* Resolution of method calls through interfaces has been improved, resulting in more precise call-graph information, which in turn may eliminate false positives from the security queries.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+lgtm,codescanning`
	`2`	`+* Resolution of method calls through interfaces has been improved, resulting in more precise call-graph information, which in turn may eliminate false positives from the security queries.`