cmd/compile: internal compiler error: Op...LECall and OpDereference have mismatched mem [1.16 backport]

[gopherbot]

@hanchaoqun requested issue #49282 to be considered for backport to the next 1.16 minor release.

@gopherbot Please open backport to 1.16 and 1.17

[gopherbot]

Change https://golang.org/cl/362055 mentions this issue: [release-branch.go1.16] cmd/compile: avoid adding LECall to the entry block when has opendefers

[cagedmantis]

@drchase left a comment stating that this is reproducible in 1.16.

[heschi]

@dr2chase This cherrypick's CL still needs review.

[gopherbot]

Closed by merging 168bc3a to release-branch.go1.16.