shortest := prec < 0
	if shortest {
		roundShortest(d, mant, exp, flt)
		digs = decimalSlice{d: d.d[:], nd: d.nd, dp: d.dp}
		// Precision for shortest representation mode.
		switch fmt {
		case 'e', 'E':
			prec = digs.nd - 1
		case 'f':
			prec = max(digs.nd-digs.dp, 0)
		case 'g', 'G':
			prec = digs.nd
		}
	} else {
		// Round appropriately.
		switch fmt {
		case 'e', 'E':
			d.Round(prec + 1)

		return false
	}

	// room for data?
	nd := countSub(br.dataCount(), bw.dataCount()) + len(b.data)
	want := 2 + int(b.hdrsize) + nstk
	i := int(bw.dataCount() % uint32(len(b.data)))
	if i+want > len(b.data) {
		// Can't fit in trailing fragment of slice.
		// Skip over that and start over at beginning of slice.
		nd -= len(b.data) - i
	}
	return nd >= want
}

				packageNames = []string{}
			}

			if nd.RawArg == "-args" || nd.RawArg == "--args" {
				// -args or --args signals that everything that follows
				// should be passed to the test.
				explicitArgs = append(explicitArgs, remainingArgs...)
				break
			}

			if firstUnknownFlag == "" {
				firstUnknownFlag = nd.RawArg
			}

			explicitArgs = append(explicitArgs, nd.RawArg)
			args = remainingArgs

		}
		if !info.Opaque && !incs[info.Name] {
			t.Errorf("Name=%s missing IncNonDefault calls; see 'go doc internal/godebug'", info.Name)
		}
	}
}

var incNonDefaultRE = regexp.MustCompile(`([\pL\p{Nd}_]+)\.IncNonDefault\(\)`)

func incNonDefaults(t *testing.T) map[string]bool {
	// Build list of all files importing internal/godebug.
	// Tried a more sophisticated search in go list looking for

					ds = append(ds, d)
				} else {
					// Synthesize a GenDecl with just the Specs we need.
					nd := *d // copy the GenDecl
					nd.Specs = specs
					if len(specs) == 1 {
						// Remove grouping parens if there is only one spec.
						nd.Lparen = 0
					}
					ds = append(ds, &nd)
				}
			}
		}
	}
	return ds, unresolved
}

func hasIota(s ast.Spec) bool {
	has := false

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00000160  45 95 65 ce 1e 42 bf 6a  83 6e bc 2e 41 28 79 b7  |E.e..B.j.n..A(y.|
00000170  b8 3f 6e 64 14 8d ed 3a  a4 02 06 46 17 e5 c7 f8  |.?nd...:...F....|
00000180  72 f1 5f 9b 14 96 c9 c6  53 e6 32 b2 0b cc d5 d7  |r._.....S.2.....|
00000190  89 1e d9 52 fb 8f 48 8b  41 6e c6 f3 55 57 41 5d  |...R..H.An..UWA]|

.segap,oitatsksid-ygolonys,pv&-n&i,yd,?nyd,?refeilgitsnüg,?orp-ytinummoc,p&h21,iog:ol,,ohsdaerpsym,?r&e&ntrapdeeps.remotsuc,su&-lautriv,lautriv,?t&adpusnd,tub-ni,uor-ym,?vres&-e&bucl,mohym,?bew-emoh:.nyd,,luhcs,??ogiv-&niem,ym,??s&d-&onys,ygolonys,?nd&-&dd,nufiat,sehcsimanyd,tenretni,yard,?isoc.nyd,ps,yard,?oper-&nvs,tig,?sndd:.&nyd,sndnyd,?,?topsgolb,vresi-&niem,tset,?xi2,y&awetag-&llawerif,ym,?srab,tic-amil,?zten&mitbel,sadtretteuf,??art!.oby,?i&sdoow?ug??on--nx??e!.&bil?dem?eif?gro?irp?kiir?m...

.segap,oitatsksid-ygolonys,pv&-n&i,yd,?nyd,?refeilgitsnüg,?orp-ytinummoc,p&h21,iog:ol,,ohsdaerpsym,?r&e&ntrapdeeps.remotsuc,su&-lautriv,lautriv,?t&adpusnd,tub-ni,uor-ym,?vres&-e&bucl,mohym,?bew-emoh:.nyd,,luhcs,??ogiv-&niem,ym,??s&d-&onys,ygolonys,?nd&-&dd,nufiat,sehcsimanyd,tenretni,yard,?isoc.nyd,ps,yard,?oper-&nvs,tig,?sndd:.&nyd,sndnyd,?,?topsgolb,vresi-&niem,tset,?xi2,y&awetag-&llawerif,ym,?srab,tic-amil,?zten&mitbel,sadtretteuf,??art!.oby,?i&sdoow?ug??on--nx??e!.&bil?dem?eif?gro?irp?kiir?m...

000002b0  bf 09 d6 c0 1e 3c 98 b3  86 a6 87 b5 a7 d2 cf d9  |.....<..........|
000002c0  dd f8 2e 86 f7 13 84 4a  f7 3b ec 8e e5 06 f5 cd  |.......J.;......|
000002d0  42 17 03 03 00 35 b2 38  87 30 58 9e 03 6e 44 dd  |B....5.8.0X..nD.|
000002e0  fb 87 11 3a a0 e7 c1 2d  74 3b 35 d0 3f bc de cd  |...:...-t;5.?...|
000002f0  71 61 8b 7c a5 7e c6 2d  76 67 44 9e 75 e5 9b 3b  |qa.|.~.-vgD.u..;|

00000190  2b 37 8b 37 8f 70 31 ee  d2 f0 86 5a 1f d3 4a 29  |+7.7.p1....Z..J)|
000001a0  7c c9 0e 97 7c 4f e6 87  b7 c8 94 f3 d2 0b 4a 1d  ||...|O........J.|
000001b0  59 60 09 81 55 6a 01 38  9f ca 20 e0 6e 44 f7 b5  |Y`..Uj.8.. .nD..|
000001c0  f6 3e 2e d0 81 f6 e6 1d  15 cf c3 d8 ae 98 84 d1  |.>..............|
000001d0  0b c9 e4 65 96 f9 eb c9  60 6d 50 37 49 9f 6d b1  |...e....`mP7I.m.|