internal/lsp: add continue to source_test

Noticed this because I was accidentally running these tests with Go
1.11.

Change-Id: Ic35d71bd1da9078b4bde6aa2ed62d54a8b95b0e0
Reviewed-on: https://go-review.googlesource.com/c/tools/+/186298
Run-TryBot: Rebecca Stambler <rstambler@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Suzy Mueller <suzmue@golang.org>
diff --git a/internal/lsp/source/source_test.go b/internal/lsp/source/source_test.go
index a73a0af..1adfcd8 100644
--- a/internal/lsp/source/source_test.go
+++ b/internal/lsp/source/source_test.go
@@ -495,6 +495,7 @@
 		ident, err := source.Identifier(r.ctx, r.view, f.(source.GoFile), pos)
 		if err != nil {
 			t.Error(err)
+			continue
 		}
 		changes, err := ident.Rename(r.ctx, newText)
 		if err != nil {