gopls/internal/test/marker: another test case for golang/go#76144

For golang/go#76144
For goalng/go#74347

Change-Id: Icce9bc5edf257adc8e377c4059b14eddd6d8428c
Reviewed-on: https://go-review.googlesource.com/c/tools/+/717360
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Madeline Kalil <mkalil@google.com>

Author: adonovan

gopls/internal/test/marker/testdata/codeaction/inline-var-76144.txt

@@ -0,0 +1,32 @@
+Regression test for #76144, a panic in refactor.inline.variable.
+
+It was fixed by CL 683535, making it logically a dup of #74347.
+
+-- a/a.go --
+package main
+
+type A struct {
+	Name string
+}
+
+func F(m map[string]A) {
+	human := A{
+		Name: "foo",
+	}
+	m["foo"] = human //@codeaction("hu", "refactor.inline.variable", result=out)
+}
+-- @out/a/a.go --
+package main
+
+type A struct {
+	Name string
+}
+
+func F(m map[string]A) {
+	human := A{
+		Name: "foo",
+	}
+	m["foo"] = A{
+	Name: "foo",
+} //@codeaction("hu", "refactor.inline.variable", result=out)
+}