cmd/compile: bug in cmd/compile/internal/noder.(*reader).typeParamNames

[prattmic]

Issue created by stacks.

This stack TGzIXQ was reported by telemetry:

• compile/bug
• cmd/compile/internal/base.FatalfAt:+3
• cmd/compile/internal/base.Fatalf:=195
• cmd/compile/internal/gc.handlePanic:+7
• runtime.gopanic:+50
• runtime.goPanicSliceB:+2
• cmd/compile/internal/noder.(*reader).typeParamNames:+3
• cmd/compile/internal/noder.(*reader).method:+4
• cmd/compile/internal/noder.(*pkgReader).objIdxMayFail:+152
• cmd/compile/internal/noder.(*pkgReader).objIdx:+1
• cmd/compile/internal/noder.(*pkgReader).objInstIdx:+8
• cmd/compile/internal/noder.(*reader).obj:+1
• cmd/compile/internal/noder.(*reader).doTyp:+9
• cmd/compile/internal/noder.(*pkgReader).typIdx:=429
• cmd/compile/internal/noder.(*reader).typWrapped:+1
• cmd/compile/internal/noder.(*reader).typ:=382
• cmd/compile/internal/noder.(*reader).structType:+3

cmd/compile@go1.23.2 go1.23.2 linux/amd64  (1)

[gabyhelp]

Related Issues

• cmd/compile: bug in cmd/compile/internal/noder.(*pkgReader).objIdxMayFail #70997
• cmd/compile: bug in cmd/compile/internal/types.(*Type).Elem #71008
• cmd/compile: bug in cmd/compile/internal/types.NewNamed #71001
• cmd/compile: bug in cmd/compile/internal/noder.(*reader).doPkg #71019
• cmd/compile: bug in cmd/compile/internal/noder.(*reader).localIdent #70998
• cmd/compile: bug in cmd/compile/internal/noder.(*pkgReader).posBaseIdx #71017
• cmd/compile: bug in cmd/compile/internal/types.(*Type).wantEtype #71022
• cmd/compile: bug in cmd/compile/internal/types.(*Type).Pos #71005
• cmd/compile: bug in cmd/compile/internal/noder.readPackage #71004
• cmd/compile: bug in cmd/compile/internal/types.CalcSize #71018

_{(Emoji vote if this was helpful or unhelpful; more detailed feedback welcome in this discussion.)}

[mknyszek]

CC @griesemer

[timothy-king]

I am going to bulk unassign myself from these. I will not be able to investigate + see these through. Happy to advise on them though.