x/tools/internal/gcimporter: TestImportTypeparamTests failures

[gopherbot]

#!watchflakes
post <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestImportTypeparamTests"

Issue created automatically to collect these failures.

Example (log):

panic: test timed out after 10m0s
running tests:
	TestImportTypeparamTests (8m58s)
	TestImportTypeparamTests/issue48225.go (8m54s)

testing.(*T).Run(0x8afe000, {0x89cd0f0, 0xd}, 0x891b2e0)
	/tmp/workdir/go/src/testing/testing.go:1629 +0x440
golang.org/x/tools/internal/gcimporter.TestImportTypeparamTests(0x8afe000)
	/tmp/workdir/gopath/src/golang.org/x/tools/internal/gcimporter/gcimporter_test.go:205 +0x359
testing.tRunner(0x8afe000, 0x8349fd4)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "golang.org/x/tools/internal/gcimporter" && test == "TestImportTypeparamTests"

2022-11-18 17:22 netbsd-386-9_3 tools@2592a854 go@fd00c14b x/tools/internal/gcimporter.TestImportTypeparamTests (log)

panic: test timed out after 10m0s
running tests:
	TestImportTypeparamTests (8m58s)
	TestImportTypeparamTests/issue48225.go (8m54s)

testing.(*T).Run(0x8afe000, {0x89cd0f0, 0xd}, 0x891b2e0)
	/tmp/workdir/go/src/testing/testing.go:1629 +0x440
golang.org/x/tools/internal/gcimporter.TestImportTypeparamTests(0x8afe000)
	/tmp/workdir/gopath/src/golang.org/x/tools/internal/gcimporter/gcimporter_test.go:205 +0x359
testing.tRunner(0x8afe000, 0x8349fd4)

2022-11-21 23:37 openbsd-amd64-68 tools@060c049c go@1c9eba19 x/tools/internal/gcimporter.TestImportTypeparamTests (log)

--- FAIL: TestImportTypeparamTests (22.75s)
    --- FAIL: TestImportTypeparamTests/ordered.go (0.10s)
        gcimporter_test.go:74: /tmp/workdir/go/test/typeparam/ordered.go:57:6: internal compiler error: 'testOrdered[int]': panic during dse while compiling testOrdered[int]:

            runtime error: index out of range [59] with length 27

            goroutine 104 [running]:
            cmd/compile/internal/ssa.Compile.func1()
            	/tmp/workdir/go/src/cmd/compile/internal/ssa/compile.go:49 +0x71
            panic({0xd82160, 0xc000f24810})
...
            cmd/compile/internal/ssagen.Compile(0xc00054f900, 0x0?)
            	/tmp/workdir/go/src/cmd/compile/internal/ssagen/pgen.go:185 +0x4c
            cmd/compile/internal/gc.compileFunctions.func5.1(0x0?)
            	/tmp/workdir/go/src/cmd/compile/internal/gc/compile.go:171 +0x3a
            cmd/compile/internal/gc.compileFunctions.func3.1()
            	/tmp/workdir/go/src/cmd/compile/internal/gc/compile.go:153 +0x32
            created by cmd/compile/internal/gc.compileFunctions.func3
            	/tmp/workdir/go/src/cmd/compile/internal/gc/compile.go:152 +0x245

        gcimporter_test.go:75: go tool compile ordered.go failed: exit status 1

2022-11-23 23:53 netbsd-386-9_3 tools@f718365b go@3115ed23 x/tools/internal/gcimporter.TestImportTypeparamTests (log)

panic: test timed out after 10m0s

testing.(*T).Run(0x89062d0, {0x8920bc0, 0xd}, 0x8b95080)
	/tmp/workdir/go/src/testing/testing.go:1487 +0x38d
golang.org/x/tools/internal/gcimporter.TestImportTypeparamTests(0x89062d0)
	/tmp/workdir/gopath/src/golang.org/x/tools/internal/gcimporter/gcimporter_test.go:205 +0x4f6
testing.tRunner(0x89062d0, 0x8327e68)

— watchflakes

[bcmills]

Duplicate of #56967