Update oudated comment

Update comment cause gc/select.go has been moved to walk/select.go and gc/reflect.go has been moved to reflectdata/reflect.go

Change-Id: I6894527e1e9dbca50ace92a51bf942f9495ce88c
GitHub-Last-Rev: 6d6a4471440403218b68ba32d4038ca41eae2901
GitHub-Pull-Request: golang/go#45976
Reviewed-on: https://go-review.googlesource.com/c/go/+/317191
Reviewed-by: Keith Randall <khr@golang.org>
Trust: Michael Pratt <mpratt@google.com>
diff --git a/src/cmd/compile/internal/reflectdata/reflect.go b/src/cmd/compile/internal/reflectdata/reflect.go
index e07294b..eb9a8a6 100644
--- a/src/cmd/compile/internal/reflectdata/reflect.go
+++ b/src/cmd/compile/internal/reflectdata/reflect.go
@@ -669,7 +669,7 @@
 // tflag is documented in reflect/type.go.
 //
 // tflag values must be kept in sync with copies in:
-//	cmd/compile/internal/gc/reflect.go
+//	cmd/compile/internal/reflectdata/reflect.go
 //	cmd/link/internal/ld/decodesym.go
 //	reflect/type.go
 //	runtime/type.go
diff --git a/src/cmd/link/internal/ld/decodesym.go b/src/cmd/link/internal/ld/decodesym.go
index c41d977..629bdcf 100644
--- a/src/cmd/link/internal/ld/decodesym.go
+++ b/src/cmd/link/internal/ld/decodesym.go
@@ -16,12 +16,12 @@
 
 // Decoding the type.* symbols.	 This has to be in sync with
 // ../../runtime/type.go, or more specifically, with what
-// cmd/compile/internal/gc/reflect.go stuffs in these.
+// cmd/compile/internal/reflectdata/reflect.go stuffs in these.
 
 // tflag is documented in reflect/type.go.
 //
 // tflag values must be kept in sync with copies in:
-//	cmd/compile/internal/gc/reflect.go
+//	cmd/compile/internal/reflectdata/reflect.go
 //	cmd/link/internal/ld/decodesym.go
 //	reflect/type.go
 //	runtime/type.go
diff --git a/src/internal/reflectlite/type.go b/src/internal/reflectlite/type.go
index f529f7c..b1899b0 100644
--- a/src/internal/reflectlite/type.go
+++ b/src/internal/reflectlite/type.go
@@ -68,7 +68,7 @@
 }
 
 /*
- * These data structures are known to the compiler (../../cmd/internal/gc/reflect.go).
+ * These data structures are known to the compiler (../../cmd/internal/reflectdata/reflect.go).
  * A few are known to ../runtime/type.go to convey to debuggers.
  * They are also known to ../runtime/type.go.
  */
@@ -111,7 +111,7 @@
 // available in the memory directly following the rtype value.
 //
 // tflag values must be kept in sync with copies in:
-//	cmd/compile/internal/gc/reflect.go
+//	cmd/compile/internal/reflectdata/reflect.go
 //	cmd/link/internal/ld/decodesym.go
 //	runtime/type.go
 type tflag uint8
diff --git a/src/reflect/type.go b/src/reflect/type.go
index df863ae..f672a7a 100644
--- a/src/reflect/type.go
+++ b/src/reflect/type.go
@@ -228,7 +228,7 @@
 // See https://golang.org/issue/4876 for more details.
 
 /*
- * These data structures are known to the compiler (../../cmd/internal/gc/reflect.go).
+ * These data structures are known to the compiler (../../cmd/internal/reflectdata/reflect.go).
  * A few are known to ../runtime/type.go to convey to debuggers.
  * They are also known to ../runtime/type.go.
  */
@@ -271,7 +271,7 @@
 // available in the memory directly following the rtype value.
 //
 // tflag values must be kept in sync with copies in:
-//	cmd/compile/internal/gc/reflect.go
+//	cmd/compile/internal/reflectdata/reflect.go
 //	cmd/link/internal/ld/decodesym.go
 //	runtime/type.go
 type tflag uint8
@@ -1910,7 +1910,7 @@
 
 	// Make a map type.
 	// Note: flag values must match those used in the TMAP case
-	// in ../cmd/compile/internal/gc/reflect.go:writeType.
+	// in ../cmd/compile/internal/reflectdata/reflect.go:writeType.
 	var imap interface{} = (map[unsafe.Pointer]unsafe.Pointer)(nil)
 	mt := **(**mapType)(unsafe.Pointer(&imap))
 	mt.str = resolveReflectName(newName(s, "", false))
@@ -2841,7 +2841,7 @@
 
 // typeptrdata returns the length in bytes of the prefix of t
 // containing pointer data. Anything after this offset is scalar data.
-// keep in sync with ../cmd/compile/internal/gc/reflect.go
+// keep in sync with ../cmd/compile/internal/reflectdata/reflect.go
 func typeptrdata(t *rtype) uintptr {
 	switch t.Kind() {
 	case Struct:
@@ -2865,7 +2865,7 @@
 	}
 }
 
-// See cmd/compile/internal/gc/reflect.go for derivation of constant.
+// See cmd/compile/internal/reflectdata/reflect.go for derivation of constant.
 const maxPtrmaskBytes = 2048
 
 // ArrayOf returns the array type with the given length and element type.
diff --git a/src/runtime/runtime2.go b/src/runtime/runtime2.go
index 0e0eb0b..2a66826 100644
--- a/src/runtime/runtime2.go
+++ b/src/runtime/runtime2.go
@@ -895,7 +895,7 @@
 // layout of Itab known to compilers
 // allocated in non-garbage-collected memory
 // Needs to be in sync with
-// ../cmd/compile/internal/gc/reflect.go:/^func.WriteTabs.
+// ../cmd/compile/internal/reflectdata/reflect.go:/^func.WriteTabs.
 type itab struct {
 	inter *interfacetype
 	_type *_type
@@ -940,7 +940,7 @@
 
 // A _defer holds an entry on the list of deferred calls.
 // If you add a field here, add code to clear it in freedefer and deferProcStack
-// This struct must match the code in cmd/compile/internal/gc/reflect.go:deferstruct
+// This struct must match the code in cmd/compile/internal/reflectdata/reflect.go:deferstruct
 // and cmd/compile/internal/gc/ssa.go:(*state).call.
 // Some defers will be allocated on the stack and some on the heap.
 // All defers are logically part of the stack, so write barriers to
diff --git a/src/runtime/select.go b/src/runtime/select.go
index e72761b..06edb69 100644
--- a/src/runtime/select.go
+++ b/src/runtime/select.go
@@ -15,7 +15,7 @@
 
 // Select case descriptor.
 // Known to compiler.
-// Changes here must also be made in src/cmd/internal/gc/select.go's scasetype.
+// Changes here must also be made in src/cmd/compile/internal/walk/select.go's scasetype.
 type scase struct {
 	c    *hchan         // chan
 	elem unsafe.Pointer // data element
diff --git a/src/runtime/type.go b/src/runtime/type.go
index 335fc57..4039273 100644
--- a/src/runtime/type.go
+++ b/src/runtime/type.go
@@ -11,7 +11,7 @@
 // tflag is documented in reflect/type.go.
 //
 // tflag values must be kept in sync with copies in:
-//	cmd/compile/internal/gc/reflect.go
+//	cmd/compile/internal/reflectdata/reflect.go
 //	cmd/link/internal/ld/decodesym.go
 //	reflect/type.go
 //      internal/reflectlite/type.go
@@ -25,7 +25,7 @@
 )
 
 // Needs to be in sync with ../cmd/link/internal/ld/decodesym.go:/^func.commonsize,
-// ../cmd/compile/internal/gc/reflect.go:/^func.dcommontype and
+// ../cmd/compile/internal/reflectdata/reflect.go:/^func.dcommontype and
 // ../reflect/type.go:/^type.rtype.
 // ../internal/reflectlite/type.go:/^type.rtype.
 type _type struct {
@@ -383,7 +383,7 @@
 }
 
 // Note: flag values must match those used in the TMAP case
-// in ../cmd/compile/internal/gc/reflect.go:writeType.
+// in ../cmd/compile/internal/reflectdata/reflect.go:writeType.
 func (mt *maptype) indirectkey() bool { // store ptr to key instead of key itself
 	return mt.flags&1 != 0
 }