[dev.regabi] cmd/compile: cleanup //go:generate directives

During recent refactoring, we moved mkbuiltin.go to package typecheck,
but accidentally duplicated its //go:generate directive into a bunch
of other files/directories. This CL cleans up the unnecessary
duplicates.

Also, update all of the stringer invocations to use an explicit file
name, and regenerate their files.

Updates #43369.

Change-Id: I4e493c1fff103d742de0a839d7a3375659270b50
Reviewed-on: https://go-review.googlesource.com/c/go/+/280635
Trust: Matthew Dempsky <mdempsky@google.com>
Trust: Meng Zhuo <mzh@golangcn.org>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Meng Zhuo <mzh@golangcn.org>

1 files changed, 29 insertions, 1 deletions

diff --git a/src/cmd/compile/internal/syntax/operator_string.go b/src/cmd/compile/internal/syntax/operator_string.go
index 3c759b2e9b..a7cd40fb13 100644
--- a/src/cmd/compile/internal/syntax/operator_string.go
+++ b/src/cmd/compile/internal/syntax/operator_string.go
@@ -1,9 +1,37 @@
-// Code generated by "stringer -type Operator -linecomment"; DO NOT EDIT.
+// Code generated by "stringer -type Operator -linecomment tokens.go"; DO NOT EDIT.
 
 package syntax
 
 import "strconv"
 
+func _() {
+	// An "invalid array index" compiler error signifies that the constant values have changed.
+	// Re-run the stringer command to generate them again.
+	var x [1]struct{}
+	_ = x[Def-1]
+	_ = x[Not-2]
+	_ = x[Recv-3]
+	_ = x[OrOr-4]
+	_ = x[AndAnd-5]
+	_ = x[Eql-6]
+	_ = x[Neq-7]
+	_ = x[Lss-8]
+	_ = x[Leq-9]
+	_ = x[Gtr-10]
+	_ = x[Geq-11]
+	_ = x[Add-12]
+	_ = x[Sub-13]
+	_ = x[Or-14]
+	_ = x[Xor-15]
+	_ = x[Mul-16]
+	_ = x[Div-17]
+	_ = x[Rem-18]
+	_ = x[And-19]
+	_ = x[AndNot-20]
+	_ = x[Shl-21]
+	_ = x[Shr-22]
+}
+
 const _Operator_name = ":!<-||&&==!=<<=>>=+-|^*/%&&^<<>>"
 
 var _Operator_index = [...]uint8{0, 1, 2, 4, 6, 8, 10, 12, 13, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 28, 30, 32}