Anchored diff gives up on finding anything,
since there are no unique lines.

-- old --
a
b
c
a
b
b
a
-- new --
c
a
b
a
b
c
-- diff --
diff old new
--- old
+++ new
@@ -1,7 +1,6 @@
-a
-b
-c
-a
-b
-b
-a
+c
+a
+b
+a
+b

	/* b */ 0,
}

var _ = T{ /* a */ {}}

var _ = T{ /* a */ /* b */ {}}

var _ = T{	/* a */	/* b */
	/* c */ {},
}

var _ = T{	/* a */	/* b */
	/* c */
	/* d */ {},
}

var _ = T{
	/* a */
	/* b */ {},
}

var _ = []T{
	func() {
		var _ = [][]int{
			/*       a, b, c, d, e */
			/* a */ {0, 0, 0, 0, 0},
			/* b */ {0, 5, 4, 4, 4},
			/* c */ {0, 4, 5, 4, 4},

   /* a */
   /* b */ 0,
}

var _ = T{ /* a */ {},
}

var _ = T{ /* a */ /* b */ {},
}

var _ = T{ /* a */ /* b */
   /* c */ {},
}

var _ = T{ /* a */ /* b */
   /* c */
   /* d */ {},
}

var _ = T{
   /* a */
   /* b */ {},
}

var _ = []T{
   func() {
      var _ = [][]int{
         /*       a, b, c, d, e */
         /* a */ {0, 0, 0, 0, 0},

	return a - b>>3
}

//go:noinline
func rsbshiftRL_ssa(a, b uint32) uint32 {
	return a>>3 - b
}

//go:noinline
func andshiftRL_ssa(a, b uint32) uint32 {
	return a & (b >> 3)
}

//go:noinline
func orshiftRL_ssa(a, b uint32) uint32 {
	return a | b>>3
}

//go:noinline
func xorshiftRL_ssa(a, b uint32) uint32 {
	return a ^ b>>3
}

//go:noinline

}

type Uint16 uint16

func (x Uint16) m(a, b, c, d, e, f, g, h byte) {
	check("Uint16", int64(x), 0x0102, a, b, c, d, e, f, g, h)
}

type Int32 int32

func (x Int32) m(a, b, c, d, e, f, g, h byte) {
	check("Int32", int64(x), 0x01020304, a, b, c, d, e, f, g, h)
}

type Uint32 uint32

func (x Uint32) m(a, b, c, d, e, f, g, h byte) {
	check("Uint32", int64(x), 0x01020304, a, b, c, d, e, f, g, h)

		{name: "two", value: "a b", want: []string{"a", "b"}},
		{name: "two_multi_space", value: "a  b", want: []string{"a", "b"}},
		{name: "two_tab", value: "a\tb", want: []string{"a", "b"}},
		{name: "two_newline", value: "a\nb", want: []string{"a", "b"}},
		{name: "quote_single", value: `'a b'`, want: []string{"a b"}},
		{name: "quote_double", value: `"a b"`, want: []string{"a b"}},

    @Rule
    public final BlockingHttpServer blockingServer = new BlockingHttpServer()

    def setup() {
        blockingServer.start()

        createDirs("a", "b", "c")
        settingsFile << """
            include 'a', 'b', 'c'
        """
        buildFile << """
            allprojects {
                task ping {
                    def projectName = project.name
                    doLast {

// Used to happen with both 6g and 8g.

package main

func F(a, b, c, d uint8) uint8 {
	return a * (b * (c * (d *
		(a * (b * (c * (d *
			(a * (b * (c * (d *
				a * (b * (c * d)))))))))))))
}

func main() {
	var a, b, c, d uint8 = 1, 1, 1, 1
	x := F(a, b, c, d)
	if x != 1 {
		println(x)
		panic("x != 1")
	}

"data-validation",d.validation),a.each(d,function(a,b){"validation"!==a&&b!==!1&&(b===!0&&(b="true"),"_"===a[0]?(a=a.substring(1),b===!1?e.removeAttr(a):e.attr(a,b)):e.valAttr(a,b))})}),a.validate(b)}}(a)});...

			path:      `a.b.[name:n1].value`,
			value:     `v2`,
			wantFound: true,
			want: `
a:
  b:
  - name: "n1"
    value: v2
  - list:
    - v1
    - v2
    - v3_regex
    name: n2
`,
		},
		{
			desc:      "ModifyListEntry",
			path:      `a.b.[name:n2].list.[:v2]`,
			value:     `v3`,
			wantFound: true,
			want: `
a:
  b:
  - name: n1
    value: v1
  - list: